Coldplay Perform at the 2012 Grammy Awards Coldplay were joined on stage by Rihanna for 'Princess of China' and also performed their hit single 'Paradise'. 1. Chris Martin sings Coldplay's huge hit 'Paradise'. 2. Rihanna joined Coldplay on stage for their first live performance of their 'Princess Of China' duet. 3. Coldplay use a striking lighting design for their 'Princess of China' duet with Rihanna. 4. Chris Martin plays the piano for 'Paradise'. 5. Coldplay switched to a brightly coloured set when Rihanna left the stage. 6. Chris Martin plays his guitar during the duet with Rihanna.