Sirius is broadcasting the COSMO Radio Confessathon - tomorrow, May 5th starting at 2pm ET - on Sirius' Cosmo Radio (ch 111).

The special will feature 500 real confessions based on the magazine's popular "Confessions" and "Guy Confessions" columns.

From dating disasters and sex snafus (grrr) to bad office behavior (grrr) and the shocking things people say behind their friends' backs (grrr?), hear the hilarious and scandalous (grrr) messages left on COSMO Radio's voicemail.

COSMO Radio will also give men and women the chance to spill their naughtiest secrets live on air during the broadcast. (Grrr.)

But wait, there's more.

The COSMO Radio Confessathon will also include confessions from people whose jobs and lives make them privy to some extra juicy scoop-like a Miami socialite who regularly parties until sunrise, a celebrity trainer who knows what the stars really do to get red-carpet ready, and two backup dancers who have performed with some of the biggest acts in pop music.

Tune in tomorrow at 2pm ET, and stay tuned in, because the Confessathon won't end until all the confessions have aired.