When my trusty Twitter feed alerted me to a collaborative musical effort between Christina Aguilera and M.I.A., I tried, really tried, not to click the link. But I did, and I found a nice danceable song I’ll probably hear in a club sometime soon but will forget about in six months. “Elastic Love,” from Aguilera’s new album, did get me in the mood for teamwork and shared experience, though. (Bonus: As far as I know, unlike in M.I.A.’s “Born Free” video, no gingers were harmed in the making of those beats.)