Getty Images for Coachella
Even Katy Perry and James Franco. Well... not together in the same video, but they've each posted their own versions.
Katy, in her Coachella see-through dress and pretty flower headband, prances around lip-synching the Carly Rae Jepsen hit with her friends.
And why not? 'Call Me Maybe' is probably the catchiest pop song of the moment.
Katy and pals took on the 'Call Me Maybe' video challenge while hanging by a pool at the music festival. At the end, Katy gives a shout out to Justin Bieber: "We love you Justin Bieber."
James Franco also gives his own spin on 'Call Me Maybe' in a new video he recently posted.
James may be out of his element a little bit on this one, but he's having a good time, anyway.
Franco has recently posted cover videos for Selena Gomez's 'Love You Like a Love Song' and 'U Da One' by Rihanna.
Justin Bieber and girlfriend Selena Gomez made their own homemade 'Call Me Maybe' video that really put Carly Rae's song on the map. They were joined by Ashley Tisdale and the Big Time Rush guys in an epic lip dub cover.
Since then, Carly Rae's Tumblr has featured loads of homemade fan videos. Talk about a song catching on!
On her end, Carly Rae approves of Katy Perry and company's take on her song, tweeting: "Well... @KatyPerry I have to say that you made my night!"
Carly Rae is currently in the UK to promote her album. She tweeted: "UK! I'm here! looking forward to seeing lots of you over the next few days X"
Check out one more clip to find out which 'Call Me Maybe' cover is Carly's fave.