The scheduled musical guest on this weekend's Saturday Night Live was Sam Smith, but another artist opened the show with a particularly poignant performance. Jason Aldean, who was onstage last weekend when a gunman opened fire on a music festival crowd in Las Vegas, sang the Tom Petty classic "I Won't Back Down" and made some brief remarks. "We're going to walk through these tough times together," said the country star, "every step of the way. Because when America is at its best, our bond and our spirit — it's unbreakable." (New York Times)

Aldean wasn't the only artist covering Petty this weekend, as tributes continued to flow. Among the most prominent: Conor Oberst doing "Walls," Red Hot Chili Peppers playing "A Face in the Crowd," Cage the Elephant performing "Mary Jane's Last Dance," Coldplay (with James Corden) doing "Free Fallin," and Miley Cyrus joining up with her dad Billy Ray Cyrus to cover "Wildflowers" on The Tonight Show.

Foreigner reunite for 40th anniversary

On Friday night, Foreigner fans rejoiced as the band's founding members reunited at a Michigan casino to celebrate the band's 40th anniversary. Singer Lou Gramm (who left in the early 2000s) and multi-instrumentalist Ian McDonald (who left in the early 1980s) rejoined the band, now led by cofounder Mick Jones, for a set that climaxed with the ultimate Foreigner mega-jam: a group of 12 past and present band members joining forces on "I Want to Know What Love Is" and "Hot Blooded." (Billboard)

Remembering Jack Good

TV host Jack Good has died at age 86 due to complications from a fall. A native of the U.K., Good began his career as an actor and found fame as the host of Shindig, a fast-paced rock performance show that had a short but seminal run on ABC in the mid-1960s. As the New York Times notes, "the house band featured Glen Campbell, Billy Preston, and Leon Russell. And the guests — among them Aretha Franklin, Tina Turner, the Righteous Brothers, Roy Orbison, Johnny Cash, Bobby Sherman, the Isley Brothers, Sam Cooke, and the Everly Brothers — covered a broad musical range."

Nelly arrested after rape accusation

Pop hip-hop superstar Nelly was arrested on Saturday morning in Auburn, Wash., after being accused of raping a woman on his tour bus. Nelly was later released, and an investigation is ongoing but charges have not been filed. The musician says the charges are false, and he plans to continue with his tour. (New York Times)

Let Josh Homme read you to sleep

Queens of the Stone Age rocker Josh Homme stopped by the BBC kids' show CBeebies to read a bedtime story: Zog, a picture book written by Julia Donaldson. The 44-year-old has some experience: he's a father of three. (Pitchfork)