BBC commissions music series Rock Of All Ages
Kemp and Leshurr will form two bands and mentor them so they are good enough to play at an iconic music festival and fit in with the rest of the musicians.
The twist is that the musicians forming the band will all be over the age of 65.
Kemp and Leshurr will search the UK for the best amateur musicians, from singers, to guitarists, to drummers, and will show that talent can shine at any age.
The mentors will call upon other famous faces to help get advice that will inspire their new recruits.