Cinco de Mayo 2020! Kyle Richards poses in a swimsuit as Blanca Blanco turns a scarf into a bikini

Cinco de Mayo is an annual holiday that has fallen on Tuesday this year.

The date is observed to commemorate the Mexican Army’s victory over the French Empire at the Battle of Puebla, on May 5, 1862, under the leadership of General Ignacio Zaragoza. 

Even though most of the world is under self-isolation due to the COVID-19 pandemic, stars still took to social media to celebrate the day. 

Pretty lady: Kyle Richards took to Instagram to share a flashback photo of herself in a swimsuit while in Greece. ‘I didn’t want to take this photo but glad @theprettymess made me,’ said the RHOBH star who looked incredible and far younger than her 51 years. She also said she was going to celebrate Cinco de Mayo then go on a diet

Fiesta: Cinco de Mayo is an annual holiday that has fallen on Tuesday this year. The date is observed to commemorate the Mexican Army's victory over the French Empire at the Battle of Puebla, on May 5, 1862, under the leadership of General Ignacio Zaragoza

Fiesta: Cinco de Mayo is an annual holiday that has fallen on Tuesday this year. The date is observed to commemorate the Mexican Army’s victory over the French Empire at the Battle of Puebla, on May 5, 1862, under the leadership of General Ignacio Zaragoza

Kyle Richards took to Instagram to share a flashback photo of herself in a swimsuit while in Greece.

‘I didn’t want to take this photo but glad @theprettymess made me,’ said the RHOBH star who looks incredible and far younger than her 51 years.

‘Now I need to use it as incentive to take off the 10 LBS I have gained in quarantine.

‘I am not ready to be set free into the wild yet! I work out everyday but have to stop with the [food emojis]/ After Cinco de Mayo I am done… I am telling you, finito bandito,’ she said making it clear she was going to live it up on Tuesday.

Tequila time! Lisa Rinna, who stars with Kyle on RHOBH, also spread some Cinco cheer. The mother-of-two wore a straw hat with wild leggings as she posed in a shop. 'In honor of #cincodemayo I’m wearing my @casamigos Pants!' said the wife of actor Harry Hamlin with whom she has two children

Tequila time! Lisa Rinna, who stars with Kyle on RHOBH, also spread some Cinco cheer. The mother-of-two wore a straw hat with wild leggings as she posed in a shop. ‘In honor of #cincodemayo I’m wearing my @casamigos Pants!’ said the wife of actor Harry Hamlin with whom she has two children

Lisa Rinna, who stars with Kyle on RHOBH, also spread some Cinco cheer. The mother-of-two wore a straw hat with wild leggings as she posed in a shop.

‘In honor of #cincodemayo I’m wearing my @casamigos Pants!’ said the wife of actor Harry Hamlin with whom she has two children.

‘Thank you @cindycrawford and @randegerber for these treasured pants.’

Rande co-owns Casamigos with George Clooney. 

Glam by SH: Salma Hayek, who was raised in Mexico, also took to Instagram to acknowledge the day. 'Happy Cinco de Mayo! #Hair and #makeup by Salma Hayek in quarantine'; she did a fantastic job

Glam by SH: Salma Hayek, who was raised in Mexico, also took to Instagram to acknowledge the day. ‘Happy Cinco de Mayo! #Hair and #makeup by Salma Hayek in quarantine’; she did a fantastic job

Salma Hayek, who was raised in Mexico, also took to Instagram to acknowledge the day.

‘Happy Cinco de Mayo! #Hair and #makeup by Salma Hayek in quarantine. 

‘Felix Cinco de Mayo. #maquillaje y #cabello hecho por Salma Hayek durante la cuarentena #vivamexico #cincodemayo.’ 

Actress Blanca Blanco posed in a scarf for a festive Cinco post. 

Clever gal: Actress Blanca Blanco posed in a scarf for a festive Cinco post. 'Tacos & Margaritas + my mexican robe turned into a dress,' said the girlfriend of John Savage

Clever gal: Actress Blanca Blanco posed in a scarf for a festive Cinco post. ‘Tacos & Margaritas + my mexican robe turned into a dress,’ said the girlfriend of John Savage

‘Tacos & Margaritas + my mexican robe turned into a dress,’ said the girlfriend of John Savage. 

Her first major role was in the 2008 feature film Dark Reel (2008) opposite Edward Furlong. Notable on screen credits include Bullet (2014) opposite Danny Trejo, Anatomy of Deception (2014), Crimes of the Mind (2014), Defending Santa (2013) (ION), and Bermuda Tentacles (2014) (Syfy).

She is now starring as Lola on Tale Of Tails from Amazon Prime.

High School Musical star Vanessa Hudgens put her gym-toned figure on display as she wore a swimsuit for the annual holiday. 

The one-piece suit was red as she added a hat and a green sign that read Cinco de Mayo. 

Cheerful: High School Musical star Vanessa Hudgens put her gym-toned figure on display as she wore a swimsuit for the annual holiday. The one-piece suit was red as she added a hat and a green sign that read Cinco de Mayo

Cheerful: High School Musical star Vanessa Hudgens put her gym-toned figure on display as she wore a swimsuit for the annual holiday. The one-piece suit was red as she added a hat and a green sign that read Cinco de Mayo

Drink up: Natalie Portman also gave a shout out to her followers on Tuesday. The Star Wars vet said this Cinco de Mayo she was 'joining @activistmonicaramirez to support the #phenomenalworkers who are keeping us fed during the pandemic'

Drink up: Natalie Portman also gave a shout out to her followers on Tuesday. The Star Wars vet said this Cinco de Mayo she was ‘joining @activistmonicaramirez to support the #phenomenalworkers who are keeping us fed during the pandemic’

Natalie Portman also gave a shout out to her followers on Tuesday. 

The Star Wars vet said this Cinco de Mayo she was ‘joining @activistmonicaramirez to support the #phenomenalworkers who are keeping us fed during the pandemic.’

She added, ‘While farmworkers are essential, their work conditions make it near impossible for them to social distance and limit the spread of COVID-19. Visit altisimolive.com today at 3 pm ET to show your support for the Farmworkers Pandemic Relief Fund!’

The Oscar winner then said: ‘In the meantime, here are strawberry mint popsicles— fun snack for kids and converts into a cocktail mixer for grownups.’

Tori Spelling told her Instagram fans how she was going to have fun on Cinco de Mayo.

Cheese for May 5: Tori Spelling told her Instagram fans how she was going to have fun on Cinco de Mayo. But fans were not happy she was celebrating with Big Ed

Cheese for May 5: Tori Spelling told her Instagram fans how she was going to have fun on Cinco de Mayo. But fans were not happy she was celebrating with Big Ed

The Beverly Hills, 90210 vet said she was going to eat cheese with Big Ed of 90 Day Fiance fame; he is know for having a bad split with fiancee Rose.

But fans were not happy she was celebrating with Big Ed. One said, ‘Not a fan of Ed’ while another added, ‘This is just disappointing.’

There are plenty other celebrities who have been celebrating all week.

Yoga cocktail: There are plenty other celebrities who have been celebrating all week. Shay Mitchell was seen in all black as she lifted a glass of red wine

Yoga cocktail: There are plenty other celebrities who have been celebrating all week. Shay Mitchell was seen in all black as she lifted a glass of red wine

Shay Mitchell was seen in all black as she lifted a glass of red wine while on her yoga mat.

And Emily Ratajkowski was seen having the same at home.

Drinking during quarantine is on the rise.

According to data from BACtrack, a major brand of portable breathalyzers, people in San Francisco drank more, and earlier in the week, after the city’s shelter-in-place order. 

Another study of 3,000 workers by Alcohol.org showed that one in three people said they’re more likely to drink in isolation.  

How to unwind at home: And Emily Ratajkowski was seen having the same at home. Drinking during quarantine is on the rise. According to data from BACtrack, a major brand of portable breathalyzers, people in San Francisco drank more, and earlier in the week, after the city’s shelter-in-place order

How to unwind at home: And Emily Ratajkowski was seen having the same at home. Drinking during quarantine is on the rise. According to data from BACtrack, a major brand of portable breathalyzers, people in San Francisco drank more, and earlier in the week, after the city’s shelter-in-place order