Jennifer Lopez is rumoured to be attending Alex P's birthday party in Ibiza on Friday.
The singer is planning to fly out to the White Isle this week, to work on her new album.
She has been recording in Artful Dodger producer Mark Hill's private studio on the island.
Alex P will be celebrating his birthday at his and Brandon Block's Tonic after-party at Space.
Other celebrities spotted on the island this week include P Diddy, Jamiroquai's Jay Kay, Elle MacPherson, Joely Richardson and Dannii Minogue, reports the Daily Mirror.