USC has retired the No. 13 jersey of Caleb Williams, who spent two seasons with the program and won the eighth Heisman Trophy in Trojans history.

The school shared the news on social media, showcasing Williams' number displayed prominently among its other Heisman winners on the Los Angeles Coliseum peristyle. Reggie Bush's No. 5 was also shown for the first time since his Heisman was reinstated in April.

Bush's retired number was removed in 2010, following NCAA sanctions imposed on USC due to improper benefits received by Bush during his college career from 2003 to 2005. Bush's Heisman Trophy was also vacated until this year, when the Heisman Trust restored the trophy to the former star running back, citing significant changes in the college football landscape.

Previously, Bush had made it clear that he wouldn't be involved with USC if his Heisman Trophy wasn't returned to him. Now, it's anticipated that Bush will lead the Trojans out of the tunnel before a game this season, although the specific date hasn't been confirmed.

USC made Williams' Heisman honor public with a video featuring rapper Snoop Dogg, singer John Legend, Trojans coach Lincoln Riley, USC women's basketball player JuJu Watkins, and Williams' teammates congratulating him.

Legend started the video by singing "Ordinary People," which Williams attempted to sing, but did not succeed, during a recent episode of "Hard Knocks: Training Camp with the Chicago Bears" that featured rookie karaoke sessions. The Bears drafted the star quarterback first overall in April and have since named him their Week 1 starter and a team captain.

"You're definitely, definitely better at football than singing," Legend said. "But I want to congratulate you on getting your number retired."

During his two seasons at USC, Williams accumulated over 8,000 passing yards and accounted for 94 touchdowns through the air and on the ground.

"Home of the Heismans! More Heisman Trophy winners than any other university," athletic director Jen Cohen announced in a post. "Let's go #5 and #13... Can't wait to celebrate you."

Bush is still pursuing a defamation lawsuit against the NCAA, aiming to hold them responsible for what he considers a malicious attack on his reputation.