Egotistical 90's band manager Steve Gold attempts to reform the modestly successfull boyband Xcite.
Great opportunity for a character journey around the band manager. No need to mention him by name, nor the band - it doesn't help sell the concept.
The goal is clear: we want to see the band on stage in the movie's finale. But right now, we don't. MAKE us want to see the band. What is the big deal?
STAKES and OBSTACLES is what we need. Why is it a big deal to him (and us) and why is it going to be hard. You may even hint at how the manager will learn to become more selfless. Will there be a romance? What will he have to sacrifice to get what he wants?
Admittedly, you don't need to give all this away in the logline but right now it is light on. You'll need some of it to sell the concept.