Christina Aguilera Joins Sabrina Carpenter Onstage During 'Short N' Sweet' Tour, Watch Singers Duet

See Sabrina Carpenter Bring Out Christina Aguilera at Los Angeles Concert

OK! Style team shops – Sabrina Carpenter's new £40 fragrance and party-ready M&S skirt

Christina Aguilera makes surprise appearance on stage at Sabrina Carpenter concert in LA