Ice Cube definitely has a look of displeasure that sits naturally on his face, although he's probably not upset all the time. Jimmy Kimmel noticed this and brought it up when the rapper paid a visit to his late night show, and he enlisted the former N.W.A. MC to say a few sentences that would sound soft in any other context, except for when Cube says them.
Cube puts on his best angry voice to say shit like, "OMG, did you do something with your hair? I love it."
Watch it above for a laugh.