Hip-Hop’s #1 groupie is at again. Apparently yesterday Kat got into a spat with NBA star Carmelo Anthony and his better half, La La Vazquez. Melo was far from mellow and reports are he lost his cool and put a 5 stacks hit on Ms. Stacks. Don’t think Commissioner Stern is gonna dig all this. The disgruntled Denver Nugget has since deaded his Twitter account.