Icona Pop have released a third version of their 2012 album track, 'My Party'.
While the first version featured the rapping skills of Smiler, they then released a second version with Zebra Katz last year.
Now we're in 2014 and there's a third version, this time with a rap by Ty Dolla $ign, which you can listen to below if you like.
Apparently them not knowing their rappers was some sort of April Fool's joke or something.