Rihanna, Kanye West and Sam Smith set to play Grammys

Pop’s biggest stars are gearing up for the Grammy Awards later, with performances due from Pharrell Williams, Katy Perry and AC/DC.Madonna will make her live return, playing music from her new album Rebel Heart; while Ed Sheeran will duet with Herbie Hancock and ELO’s Jeff Lynne.Rihanna, Kanye West and Paul McCartney will also give the first performance of their collaboration, FourFiveSeconds.But Taylor Swift has excused herself from performing at the ceremony in LA.The star, whose single Shake It Off is up for record of the year, says she is too “wrapped up and entangled” in planning her world tour to choreograph a Grammy performance.”I’ll be there having a dance party/rage fest in the audience,” she added.Paul McCartney, Rihanna and Kanye West have 46 Grammys between them (surprisingly, West has the most, with 21). They will perform their acoustic anthem FourFiveSeconds on the night, while West will also give a second, solo performance.
Katy Perry will follow up her spectacular Super Bowl half-time show with a low-key performance highlighting the victims of domestic abuse.Ariana Grande rose to fame as Cat Valentine on the children’s TV series Victorious – which led to a soundtrack album, Music From Victorious, in 2011. But her singing career really took off in 2014 with her second album, My Everything, which spawned four top 10 singles, including Problem and Break Free. Her set is likely to include elements of both of those.