Entertainment Music Britney Spears Wishes Boyfriend Sam Asghari a Happy Birthday as They Adorably Dance to 'Toxic' "Who did it better ????" she captioned her post By Darlene Aderoju Darlene Aderoju PEOPLE, Music Writer and Reporter People Editorial Guidelines Published on March 4, 2021 03:50 PM Share Tweet Pin Email Britney Spears and Sam Asghari. Photo: Kevin Winter/Getty Images Britney Spears is sending birthday love to her longtime beau! In celebration of her boyfriend Sam Asghari's 27th birthday Thursday, the pop star, 39, shared two hilarious video clips on Instagram, in which the couple separately attempt to do the same playful dance to her 2003 hit song, "Toxic," from inside a shower room wearing matching robes. "Happy birthday to the man that always makes me laugh 😂🎉🎈!!!!!" she captioned her post. "Who did it better ???? @samasghari." Sam Asghari Wishes 'Lioness' Britney Spears a Happy Valentine's Day: 'I'm Her Favorite' On her Instagram story, Spears shared a photo of Asghari, writing "Happy birthday baby 🎁😍❤️." Last month, The Family Business actor shared an adorable Valentine's Day post in honor of Spears. "After chocolate 🍫 I'm her favorite 😂 happy chocolate Day lioness ❤️ #myvalentine," he captioned the snapshot. The pair seemingly enjoyed hiking at a stunning locale for the holiday. Sam Asghari and Britney Spears. Britney Spears/Instagram Want to get the biggest stories from PEOPLE every weekday? Subscribe to our new podcast, PEOPLE Every Day, to get the essential celebrity, entertainment and human interest news stories Monday through Friday. Spears and Asghari first met on the set of her "Slumber Party" music video in 2016 and began dating later that year. In December, the couple celebrated Spears' 39th birthday with a trip to Hawaii. The personal trainer captioned the Instagram post, "Happy Birthday to my Lioness 🥳 🎂 🎉 we've been celebration [sic] we will celebrate until the end of the year ❤️ let the cake eating began......"