Enter Shikari, Wiley and Hadouken! have been added to this weekend's Camden Crawl line-up, which takes place at various venues, Camden, North London from 18-19 April.
Fans of Enter Shikari will be given the chance to watch them perform at a secret show on the Friday (18).
Those hoping to catch the post-hardcore band must be MySpace users and must have bought a Camden Crawl ticket. Click HERE for full instructions on how to get a place at the gig.
Other additions released today include Hadouken!, who will be appearing for the second year running, and Wiley.
Lightspeed Champion, however, has cancelled both of his Camden Crawl performance over the weekend after being taken seriously ill in Switzerland.
The star was set to appear twice on the Friday of the festival but he is at home recuperating after a tooth infection spread to the rest of his body.
Other acts set to perform over the weekend include Florence and the Machine, Slow Club, The Wave Pictures, Noah and the Whale and Crystal Castles. Click HERE for the full line-up.