Arcade Fire apparently forgot to bring a creepy, oversized mask for 'SNL' host, Tina Fey.

+ Arcade Fire served as musical guests on the season premiere of "Saturday Night Live," where they debuted new material off of their forthcoming Reflektor (due Oct. 29). Watch them perform "Afterlife," as well as the title track. (MTV News)

+ Following Arcade Fire's "SNL" appearance, the band debuted more tracks from Reflektor ("Night," "We Exist," and "Normal Person") during a kooky, 30-minute TV special dubbed "Here Comes The Night Time." Famous friends like Bono, Ben Stiller, James Franco, Zach Galifianakis, and Michael Cera even made cameos. (MTV News)

+ Go call the governor, because Britney Spears will drop the "Work Bitch" video tomorrow! "Clear the way on TUESDAY, OCT 1ST for the world premiere of #WORKBxxCH on the @CW_network!," she tweeted. (MTV News)

+ Demi Lovato has announced her new tour dates! The "Neon Lights" Tour launches on Feb. 9 in Vancouver, British Columbia, and wraps on March 30 in Indianapolis. (Just Jared Jr.)

+ Miley Cyrus' Bangerz doesn't hit shelves until Oct. 8, but to tide you over, check out 30-second previews of every song on the album. (Just Jared)

+ Watch Ariana Grande's a cappella cover of Connie Francis' "Where The Boys Are." Though she forgot some of the words, it's still a sweet rendition. "Starting a new thing where every Friday night I'm going to post a video on YouTube of me singing something lullaby like," she tweeted. (Just Jared Jr.)

+ Congrats to "Glee"'s Heather Morris and her partner, Taylor Hubbell, who welcomed their first baby over the weekend! Their son Elijah was born on Saturday, Sept. 28. (Us Weekly)

Photo credit: Dana Edelson/NBC