They stormed the early 2000s like their name was El Niño. But what happened once the storm died down? It's SUM 41 week!

Alex and Jon go solo to talk about the startling meteoric rise and winding transformation of this somewhat pop-punk Canadian outfit. Tommy Lee and Rob Halford join the band for a rock medley to open up MTV's 20th anniversary special before Seann William Scott and Sum 41 attempt to mend a broken nation on SNL. And the guys try to make sense of the band's long and intentional turn away from their pop-punk origins. Plus the debut of "Fake Hair or Real Hair?"

Want to watch along with us? Check out the links below for the performances discussed this week!

Fat Lip/No Sleep Till Brooklyn/Shout it at the Devil/You've got Another Thing Coming with Tommy Lee and Rob Halford, 8/1/01 on MTV's 20th Anniversary Special

Fat Lip (29:11 mark)/In Too Deep (55:42 mark), 10/6/01 on Saturday Night Live

Still Waiting, 12/7/02 on Mad TV

We're All to Blame, 10/15/04 on Late Night with Conan O' Brien

Screaming Bloody Murder, 4/14/11 on Lopez Tonight

Fake my own Death, 10/3/16 on The Late Show with Stephen Colbert