Kelis -- Under the Sea

1/31/2010 4:00 AM PST BY TMZ STAFF
Here's singer/Nas babymama Kelis at an event Thursday night in L.A. (left) ... and an old ad for Artemia salina x nyos, A.K.A. Sea Monkeys (right).

Kelis & Sea Monkeys
One of 'em is popular with the boys in the yard.

We're just sayin'.