Biffy Clyro, Jay-Z, Empire Of The Sun also for Scottish bash
Further notable names for the event, which takes place on July 9-11 in Balado near Kinross, include The Coral, Dizzee Rascal, Vampire Weekend and The Prodigy. Kasabian had previously been announced as the other headlining band.
Tickets for T In The Park go on sale at 9am (GMT) on Friday (February 26).
See the new issue of NME, out tomorrow (24), for an interview with festival chief Geoff Ellis about who Eminem may be bringing with him to the festival.
The T In The Park line-up so far is:
30 Seconds To Mars
Black Eyed Peas
Broken Social Scene
Empire of the Sun
Florence And The Machine
Mayer Hawthorne and The County
The Temper Trap
Two Door Cinema Club