Yeah, that is the leader in the clubhouse so far, though her shirt doesn't seem to have a space between words and I can't find that logo anywhere nor a reference to thirteen.
When I first asked her what it is she said it's some TV show where guys in Britain go around to bars and night clubs. She said she found that on wikipedia. That didn't sound right (and also sounded like maybe not a shirt to be wearing to school...) so I tried to look it up.
https://en.wikipedia.org/wiki/Blitz_Kids
I think she basically read part of the first sentence and came to that conclusion: "The Blitz Kids were a group of young people who frequented the weekly Blitz club-night in Covent Garden, London..."
nevermind the rest of it:
"in 1979-80, and are credited with launching the New Romantic subcultural movement.[1] Steve Strange and Rusty Egan co-hosted Tuesday nights and imposed a strict dress code. Among core attendees were Boy George, Marilyn, Alice Temple, Perri Lister, Princess Julia, Philip Sallon and Martin Degville (later to be the frontman of Tony James' Sigue Sigue Sputnik). Crucially, the club lay between two art colleges (St Martin's School and Central School) and it became a testbed for student fashion designers who set London ablaze during the 1980s.[2] These included Stephen Jones, Kim Bowen, Fiona Dealey, Stephen Linard, David Holah, Stevie Stewart, John Galliano, Darla Jane Gilroy and more. The Blitz began making headlines thanks to its outrageous styles of clothes and make-up for both sexes,[3] subsequently documented by Gary Kemp in his 2009 first-person book, I Know This Much..."'