Chris Rock, Alicia Keys and Lenny Kravitz Are Joining 'Empire'!

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Fox has lined up Chris Rock, Alicia Keys and Lenny Kravitz for season two guest spots on Empire, the network announced Monday.
No official word yet on who they will play and how their storylines will play out next season.
Season two of the ratings juggernaut will also expand from 12 to 18 episodes and will be split into two parts. Singer-songwriter Ne-Yo has also been tapped to produce new music next season, alongside Timbaland.
The big announcement was made at Fox's upfront presentation to advertisers in New York, which included surprise performances from Jennifer Hudson and stars Terrence Howard, Taraji P. Henson, Jussie Smollett and Bryshere Grey.
ET caught up with Grace and Frankie stars Jane Fonda and Lily Tomlin who are both dying for a part on Empire. Watch the video below to find out who already put the call out.