Woolridge, a lanky 6-foot-9 forward with an inside-outside game, is the son of former Los Angeles Laker Orlando Woolridge. He signed with Tennessee out of L.A.-area high school Harvard-Westlake in the class of 2008 and started 20 games over four seasons with the Volunteers.
He was granted a medical hardship waiver this offseason because of an ankle injury that limited him to only eight games his junior year, and he subsequently visited a number of schools on the West Coast to scout out his next destination.
Woolridge visited USC unofficially earlier this month and then arrived on campus on Friday for his official visit. He was scheduled to stay until Sunday but decided to sign Saturday after making his decision.
He averaged 4.3 points in 13.6 minutes per game last season for the Volunteers and could jump right into the starting lineup for USC at the small forward spot, pushing Wake Forest transfer Ari Stewart into a power forward position.
Woolridge also moonlights as a rapper, going by the stage name Swiperboy. One of his more popular songs is titled, "Never Leave You Like Kiffin."
It was written after football coach Lane Kiffin departed Tennessee for USC in January 2010.
Pedro Moura is a regular contributor to ESPNLosAngeles.com.