LL Cool J. He is the man.
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Special Agent Sam Hanna (LL COOL J) from NCIS: Los Angeles and Danny Williams (Scott Caan) watch for a suspect on Hawaii Five-O episode "Pa Make Loa" airing on 4/30/2012. This is the first episode of a two night cross-over event for both shows.
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LL Cool J is the man. That's pretty much all we have to say.
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NCIS: Los Angeles Quotes

Deeks: You got my back?
Kensi: Always.

Kensi: She's out.
Callen: Welcome back.