Song my husband heard, what is it?

Male singer. Seems like it may be recent... it was on a station that plays new and older music... 107.1 for people local to Redding, CA... Anyway, it is about a girl with an "R" name, my hubby can't remember her name - he said it was a wierd name - it may not be... We just heard a tiny snippet that said "I'll do for you..." very melow song. Obvoiusly not the rap song by Father MC??? Anyway, thanks in advance. P.S. He says its about how much he loves her.