The Reading and Leeds Festivals anounced their initial 2010 line ups today, with acts like Modest Mouse, Weezer, NOFX, Gogol Bordello, LCD Soundsystem, Yeasayer, The Cribs and The Big Pink all on the bill. Check out the complete for both Reading and Leeds.

Headlining the festivals will be Arcade Fire, Guns N' Roses and Blink-182.

Tickets are on sale now. Click here for Reading Festival tickets and Leeds Festival tickets.

There are more acts to be announced, with seven stages in total. The festivals run from August 27th - 29th, also known as the bank holiday weekend.

Reading and Leeds were recently known as "Carling Weekend" until the festival sponsor Carling dropped support for the two shows. Festival Republic has picked up the bill and continued the drive. Reading and Leeds are two of the oldest music festivals around, which date back to 1961.

Check out the Spacelab Festival Guide for more information on the Reading Festival and Leeds Festival line up, tickets, and other details.