They call me the Stephon Marbury of rap, darling
Cause as soon as they throw on some R. Kelly I start ballin

from Eminem – W.T.P. Lyrics on Rap Genius

Meaning

Stephon Marbury — former NBA All-Star, notorious chucker and locker room cancer, now playing in China — got hella-emotional on Ustream and started “bawling” when R Kelly came on his tingy bedroom speakers. Watch it!

Eminem starts “balling” (in the more traditional sense) when R. Kelly starts playing on strip club speakers

This is actually a triple entendre.
1. Bawling (crying)
2. Ballin' (slang for showing wealth or being a playa)
3. Balling (because Stephen Marbury is a basketball player)

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