'Of course it sucked when everything was falling to pieces,' says the singer
'Now' will be the first single from band's self-titled fourth LP
'I'm 23, but it feels like I'm 63!' she jokes
Listen to the band's song from 'Transformers: Dark of the Moon'
Also: Taylor Swift tops chart in dire week for album sales; Britney Spears breaks radio record
Lead singer responds to allegations made by former bandmates
Band has already replaced guitarist and drummer
'This band became all about Hayley,' brothers Josh and Zac Farro write in long blog post
'For the last year it hasn't seemed as if they wanted to be around anymore,' says singer Hayley WIlliams
Aretha Franklin, recovering from surgery, gets a shout-out from Sugarland
Katy Perry, Hayley Williams, B.o.B. and more
Katy Perry, Nicki Minaj, Paramore 'Salute the Troops'
Hayley Williams and Co. rock 'Brand New Eyes' at sweltering Raleigh show