In Auckland, Norsewood's Tayla Mitchell made it into the top group with Brett on the DVD, with Casey and Amber Mitchell in the next group.
Haley Black, along with Stevye and Drew Bishop, were selected for the third group.
"Brett releases a new DVD/CD package each year, which schools around New Zealand can purchase," Michelle said.
Jump Jam 18 will be released later this year, featuring all six Norsewood girls.
"The time in Auckland was full on, but loads of fun," Michelle said.
"Tayla described it as one of the most exciting and memorable moments in jump jam, while Stevye said she loved the dances and it was a chance of a lifetime."
Time spent with Brett was hectic, with a full workshop from 10.30am to noon.
During this time he worked on presentation of moves, the girls' own presentation and timing.
"Following that, auditions were held until 1pm, at which time the girls found out their positioning in the groups," Michelle said.
"The girls had to learn and perfect three routines before filming took place, with their day finishing at 4pm."