Rapper Lil Mama gets facial rejuvenation surgery like the results

Rapper Lil Mama has been the BUTT OF JOKES for many years now - but she's FINALLY done something about it. According to our insider, Lil Mama has undergone a "facial rejuvenation" surgery - to make her face look LESS HARSH.

In addition to the surgery, she's not BOTOXING SOME OF THE WRINKLES out of her face.

The result of all that work . . . is that Lil Mama looks like a gal in her 20s again. Pretty nice.