Mayor Marty Walsh has officially declared April 9 to be Riot Grrrl Day in the City of Boston in honor of a lecture and performance by Kathleen Hanna (Bikini Kill, Le Tigre), one of the driving forces behind the Riot Grrrl movement in the early 1990s. (Stereogum) Among the bands that inspired the Riot Grrrl movement were Babes in Toyland, who will be performing this summer at Rock the Garden.

The Mark Ronson/Bruno Mars collaboration "Uptown Funk" is turning into not just the song of the decade (so far) but one of the biggest pop hits of all time. This week it remains atop the Billboard Hot 100 for a 14th straight week, a feat equalled by only six other songs (the Black Eyed Peas' "I Gotta Feeling," Mariah Carey's "We Belong Together," Elton John's "Candle in the Wind 1997/Something About the Way You Look Tonight," Los Del Rio's "Macarena," Boyz II Men's "I'll Make Love to You," and Whitney Houston's "I Will Always Love You") and surpassed by only one: "One Sweet Day" by Carey and Boyz II Men, which topped the chart for 16 weeks in 1995-96. (Billboard)

Jack White, T Bone Burnett, and Robert Redford will be the executive producers of American Epic, a historical music project that will trace the 1920s and 1930s roots of contemporary music in a three-part documentary series, a feature-length film, and accompanying album releases. (Rolling Stone)

Twisted Sister announced that they'll end their touring career with a string of dates next year. Later this year, the band will also play a pair of tribute concerts in honor of their drummer A.J. Pero, who died on March 20. (Rolling Stone)

A Selena hologram is on its way, and this "walking, talking, singing, and dancing, digital embodiment" of the late singer will have a busy agenda: she "will release new songs and videos, will collaborate with current hit artists, and aims to go on tour in 2018." (Billboard)

A Mariah Carey Christmas movie is reportedly moving forward; the "All I Want for Christmas Is You" singer is said to have a major role in the film, which will be about "how the power of music can transport you back in time to your truest and most authentic feelings." (Billboard)

Marilyn Manson is seemingly not taking his alleged Canadian Denny's assault lying down: his representatives have reportedly announced plans to press charges against his alleged assailant. (Billboard)

If you were hoping for new Sharon Van Etten music soon, she isn't going to let you down: a new EP, titled I Don't Want to Let You Down, will be released on June 9. (Pitchfork)

Ready or not, Darius Rucker says he and his bandmates are starting work on a new Hootie and the Blowfish record. (Billboard)