I suspect that agents are looking for YA memoir from social media and reality stars -- teens with Instagram, Tumbler or YouTube followings. I recently saw a big endcap at B&N with them -- Jazz Jennings, PewDiePie, Jenny Lawson, Shane Dawson, Joey Graceffa, Miranda Sings, Ricky Dillon, Tyler Oakley.
(Note that the only people I knew before looking on Amazon were Jazz, PewDiePie, and Jenny.)