Synergy.
1. The interaction of two or more agents or forces so that their combined effect is greater than the sum of their individual effects.
2. Cooperative interaction among groups, especially among the acquired subsidiaries or merged parts of a corporation, that creates an enhanced combined effect.
Awkward insular faux-romantic music mag darlings The xx, meet professional (and therefore safe) kooks and music mag darlings Florence & The Machine.
Is it better than The Source? No. Is it an interesting aside? Yes. Will it help both bands get more coverage? Certainly.
mp3---> Florence & The Machine - You've Got The Love (The xx remix) (via box.net)
