Lady Gaga rang in her 31st birthday in style on Tuesday night by partying with guests including Elton and Johnny Depp.
Earlier in the day, Elton wrote on Instagram, alongside a black and white photo of the pair:
"To my glamorous, dearest friend. I wish you the happiest of birthdays ever. Thank-you for being a part of mine. @ladygaga #HappyBirthdayLadyGaga".
Gaga had been among the performers at Elton's 70th birthday bash on Saturday night in Los Angeles, where she belted out her Born This Way hit and, along with Stevie Wonder, delivered a rendition of the soul legend's classic, Happy Birthday.