On a stage made up like a teenager’s bedroom from the 90s, a girl in a diamante-studded denim jacket is making a motivational speech that covers vaginas, judgmental people and her love of pink clothes. Girli – otherwise known as Milly Toomey, a 19-year-old – tends to pontificate in this fashion before each song, which is helpful for two reasons. First because her half-rapped lyrics – about complaining neighbours and “fuck boys” among other things – get slightly swallowed up on stage. And second because it proves how earnest she is, something you might not have been able to identify through her retro dress sense and fashionably cringeworthy sound (sugary DIY pop delivered in a suburban London accent), which both suggest a high level of knowing playfulness.

She’s yet to release an EP, but Girli already has some earwormy gems in her portfolio – including Girl I Met on the Internet, Not That Girl and new track Hot Mess, which sounds a bit like X-Ray Spex covering Cool for Cats – and they are all brought to life here with help from Kitty, her “sexy hype girl” and DJ. On the surface Girli may resemble Lady Sovereign as produced by PC Music, but it’s more accurate to think of her as a musician in the indie tradition – it’s just that the sound of indie nowadays is crude synths, Taylor Swift-style big pop choruses and feminist-slanted rap. It’s certainly a heritage the devout, school-age crowd seem to acknowledge, as they ecstatically sing along to Jamie T, Kate Nash and the Wombats as they’re blasted into the venue pre-show. The London indie scene rises again, it seems, but this time in a girlier guise.

• At Stereo, Glasgow, on 14 April. Box office: 0141-222 2254.