They'll be joined on the inaugural 'Parahoy!' cruise by Tegan and Sara
US band to play second huge London show in September
US band set for huge UK shows later this year
Band play the first two singles from their new album on Jimmy Kimmel Live
The frontwoman has joined forces with Mac to front her own line of cosmetics
Track features on the band's self-titled new album
'Still Into You' singer says she doesn't feel the need to swear to 'be cool'
The punk-pop band's fourth LP 'Paramore' is set for official release on April 8