LL Cool J put his mic skills to the test for a new purpose this week, as he took to the stage at the CES Electronics show in Las Vegas to promote new music technology Boomdizzle.

The rapper laid down verses from his new track 'No More' on-the-fly, collaborating via video link with a producer as he built an original beat for the song.

'No More,' which features Ne-Yo on the original, premiered on LL's primetime show NCIS: Los Angeles in November last year, as part of a soundtrack to his character's storyline.

Take a look a photos from the CES event below.

LL Cool J promotes new music technology 'Boomdizzle' in Las Vegas...