Pink makes a cathartic, empowering comeback with a new single after five years without releasing an album. Avicii also releases new music a year after officially retiring from his live DJ career: another cathartic one, but club-ready too, this time with an assist from Rita Ora. Oasis's Liam Gallagher is launching his solo career with tracks that feel like throwbacks — and that's not a bad thing. New talent Morgan Saint makes a case for sinuous, stylish pop. And R&B's R.LUM.R shows us how trap and blues can happily coexist on his new album, Afterimage.