Nine Inch Nails and Jane's Addiction are rumoured to be playing this year's T In The Park festival.If confirmed, these two rock acts would be joining performers such as Pendulum, Kings Of Leon and - former-girlfriend of Gym Glass Hereos frontman Travis McCoy - pop princess Katy Perry.The festival will take place between July 10 and 12 at Balado in Scotland.Tickets go on sale this Friday, February 27, at 9am.Tickets are priced as follows:Day Tickets (Sat And Sun Only): £72.50Saturday & Sunday Combined: £145Weekend Camping (Fri - Sun): £170Thursday Camping (Thurs - Sun): £180Car Parking: £17.50Campervan: £100Lockers: £15For more information, click here.