Credit: Angela Weiss/Getty Images for Race To Erase MS

This is a potential make-up news item — mid-2000s sister act Aly & AJ have confirmed that they are working on new music together.

On Sunday, Aly Michalka posted a picture on Instagram with her sister AJ and wrote, “Back in the studio with this one.” The post prompted a Teen Vogue post about the musical reunion, which Aly & AJ then retweeted, writing: “This is very true news.”

The Michalka sisters haven’t released music under the Aly & AJ moniker for 9 years; they put out their third studio album Insomniatic in 2007. In 2009, the duo changed their name to 78violet and released a few songs before returning to the Aly & AJ name at the end of last year.

Currently, Aly stars on the CW series iZombie,and AJ stars on the ABC sitcom The Goldbergs.