The SuperFlash musical episode may be well behind us, but the Supergirl cast had some songs in their heart as they dropped by TVLIne’s Comic-Con interview suite.

For starters, the topic of Mon-El’s “mysterious” (as Chris Wood put it) whereabouts when Season 3 arrives led Tony Award nominee Jeremy Jordan to serve up a short ditty. Later, TVLine Senior Digital Editor Andy Swift’s solicitation of a Supergirl theme song resulted in Wood, Jordan, Mehcad Brooks and — with some nudging — series lead Melissa Benoist sharing an original tune they previously workshopped, about life on Daxamite.

On the non-musical side of things, in the video Q&A above:

* Season 3 addition Odette Annable playfully warned that her character, “worldkiller” Reign, will be “the best villain… that’s ever reigned!”

* Benoist spoke of Smallville alum Erica Durance being the “perfect” pick to fill Laura Benanti’s shoes as Alura

* Katie McGrath expounded on the refreshing Lena/Kara friendship

* David Harewood shared his excitement about having a onetime voice of Martian Manhunter, Carl Lumbly (Alias), play his TV dad

* Brooks previewed a CatCo shake-up that will stir some “soul-searching” in James

All that, and more!

The CW’s Supergirl returns Monday, Oct. 9 at 8/7c.