The performer lineup for the upcoming 55th annual Grammy Awards keeps getting longer. After Justin Timberlake was confirmed to take part in the music's biggest night, now Frank Ocean is added to the mix along with new musical guests Maroon 5 and Alicia Keys, AceShowbiz said.

By adding the "Novacane" singer, it means that all five nominees for Album of the Year at this year's Grammys will perform at the awards show. The Odd Future Wolf Gang Kill Them All member joins Mumford & Sons, The Black Keys, Jack White and Fun.

Meanwhile, Adam Levine and his band are set to collaborate with 14-Grammy winner Keys. Other confirmed duets during the live telecast are between country music acts Miranda Lambert & Dierks Bentley, and British singers Elton John & Ed Sheeran.

Hosted by LL Cool J for the second year in a row, the biggest night in music on February 10 is also going to feature live performances by Rihanna, Taylor Swift, Carrie Underwood and Best New Artist nominee The Lumineers.