Remember that you can score higher than the mentioned score to win the unlockable.

Character or Song	How to Unlock
All For One	Get 12.5 million points.
All Good Now	Get 60 million points.
Beautiful Soul	Get 80 million points.
Bet On It	Get 20 million points.
Cheetah Sisters	Get 45 million points.
Coach (Mr. Bolton)	Score 500 000 in The Gym Stage.
Counting On You	Get 90 million points.
EveryDay	Get 30 million points.
Fabulous	Get 7.5 million points.
Gotta Go My Own Way	Get 1 million points.
Humuhumunukunukuapua'ah	Get 15 million points.
I Can't Take My Eyes Off of You	Complete Story Mode
I Don't Dance	Get 10 million points.
I Will Be Around	Get 70 million points.
Jump To The Rhythm	Get 35 million points.
Kelsi	Score 250 000 on "What I've been Looking For (Reprise)"
Martha	Score 500 000 in the Cafeteria Stage.
Mascot	Score 750 000 on "We're All In This Together"
Mrs. Montez	Score 500 000 in the Science Class Stage.
Ms. Darbus	Score 500 000 in The Auditorium Stage.
Noone	Get 40 million points.
On the Ride	Get 50 million points.
Push It To The Limit	Get 100 million points.
Skater	Score 750 000 in The School Grounds Stage
What Time Is It?	Get 2 million points.
Work This Out	Get 25 million points.
You Are The Music In Me	Get 3 million points.
You Are The Music In Me (Reprise)	Get 5 million points.
Zeke	Score 250 000 on "Stick To The Status Quo"