Katy Perry and Lorde set to perform at the Grammy Awards

The Grammy Awards are known for their compelling musical mash-ups, with past performances from Eminem and Sir Elton John, Beyonce and Prince, and Jay Z and Sir Paul McCartney. This year proves to be no disappointment. Performers added to the line-up were announced on Tuesday – including nominees Katy Perry and Lorde.

However, the list grows more eclectic with the announcement of performances by eight-time Grammy-winning group Metallica with Grammy Cultural Ambassador to China Lang Lang, nominee Pharrell Williams, Nile Rodgers (of Chic), nominee Robin Thicke with Grammy-winning group Chicago, and 25-time Grammy winner Stevie Wonder who will join a previously announced performance by nominee Daft Punk. Such a cast is in addition to previously announced performances by nominees Kendrick Lamar joined by Imagine Dragons; Pink and Nate Ruess (of Fun); as well as a special performance featuring Merle Haggard, Kris Kristofferson, Willie Nelson, and nominee Blake Shelton.

Perry’s motivational anthem Roar has garnered her two nominations this year: Song of the Year and Best Pop Solo Performance. Lorde, who will perform for the first time on the Grammy Awards telecast, has four nods - Record of the Year, Song of the Year and Best Pop Solo Performance for Royals and Best Pop Vocal Album for Pure Heroine. Three-time Grammy winner Williams has seven nominations: two for Record of the Year and two for Best Pop Duo/Group Performance for Get Lucky (with Daft Punk) and Blurred Lines (with Robin Thicke and T.I.); two in Album of the Year as a featured artist on Daft Punk's Random Access Memories and as a producer on Kendrick Lamar's Good Kid, M.A.A.D City; and one for Producer of the Year, Non-Classical.

Two-time Grammy winner LL Cool J will return as host. The 56th annual Grammy Awards will take place on Sunday, January 26 at the Staples Center in Los Angeles – broadcast on CBS from 8 to 11:30 p.m. (ET/PT). The telecast will also be covered online at Grammy.com and CBS.com. Additional performers, presenters and special segments will be announced.