Oregon remained No. 1 after its 38-9 dismantling of Illinois, and Georgia stayed at No. 2 despite being on a bye.
Singleton has become a threat in the passing game, making him that much more difficult to gameplan for.
College GameDay's last visit to Happy Valley was for Penn State-Auburn in 2021.
Tawee Walker and the Wisconsin running backs averaged 194 yards per game before Saturday night's contest and finished with just 81 yards.
The Nittany Lions finished with 246 yards in the air.
The Nittany Lions' depth was huge in a crucial win at Wisconsin.