BRUNO MARS It Will Rain (4:17) Producer: The Smeezingtons Writers: Bruno Mars, Philip Lawrence, Ari Levine Publishers: Various Summit/Chop Shop/Elektra/Atlantic Bruno Mars's latest single, "It ...

Adele is the most prominent pop artist of the moment. Mars is nipping at her heels. "Grenade" and "Just the Way You Are" were both No. 1 hits; "It Will Rain," his latest weeper, has been ...