Another place went to Simone Stewart, 26, also from London, who was chosen by eight of the nine current pupils.
All 13 finalists will enter the Academy on Wednesday after the final auditions.
They'll all be competing for that all-important recording contract and a 12-month showbiz lifestyle, including a luxury flat and a sports car.
Make sure you come back for daily updates from CBBC's Jake and Holly in the CBBC studio in the Academy's garden.
They'll be keeping a close eye on the students, tutors will be dropping in for a gossip and there'll be loads of chances for you to get involved too.