Miranda Lambert and Anderson East Sang Mariah Carey's 'Always Be My Baby' Onstage Together

Country star Miranda Lambert joined new boyfriend Anderson East and his band for a surprise duet of Mariah Carey's "Always Be My Baby" on Valentine's Day at the Pearl Street Nightclub in Northampton, Massachusetts. Beer bottle in hand, Lambert took the stage with singer Gwen Sebastian for a rootsy and romantic version of Carey's classic ballad. Last July, Lambert divorced ex-husband Blake…