Chris Martin took to Twitter to declare Ri-Ri's newest one of his "favourite songs." Not a shock: It's very close to Coldplay soul, a striking turn into lustrous power balladry after a string of filthed-up R&B sexcapades. Written by arty Aussie diva Sia and produced by Benny Blanco and Norwegian hitmaker Stargate, it's glassily curvaceous and strikingly spare: "Find light in the beautiful sea/I choose to be happy," she sings over an ice-flow piano and cascading beat. If she really has started things back up with that other Chris, then this hits the perfect, vaguely creepy note of against-the-odds hope for the occasion.

“Tonight's the Night”

The lead cut and title track from this girl group's debut album, "Tonight's the Night" was written by 19-year-old bandmember Shirley Owens, who sings lead, and producer Luther Dixon. The band from Passaic, New Jersey met in high school, first calling themselves the Pequellos. The song's frank thoughts about sexual and emotional surrender was racy for the time, but that didn't stop the Chiffons from cutting a similar version immediately after the original came out. "We were the first female group to write some of our own material," band member Beverly Lee recalls. "We did have some say-so in our writing."