Complex sentence: Since then, they've toured Australia with The Strokes, recorded with Dave Sitek from TV on the Radio, & in September 2006, the band signed with Capitol Records amongst a bidding frenzy from both sides of the Atlantic.
Split into simpler sentences: Since then, they've toured Australia with The Strokes & recorded with Dave Sitek from TV on the Radio. In September 2006, the band signed with Capitol Records amongst a bidding war from both sides of the Atlantic.