I disagree. Kravitz has at least 5 singalong songs that people know in general whereas I can´t recall anything by Fender. Furthermore, Lenny has way more plays on Spotify than Fender in terms of commercial popularity. Then of course, Lenny is obviously past his prime.
Wouldn't have thought so considering how well he sold at o2 previously. They could make Zach a lower one if the second day doesn't sell well or one of the next set of acts, at least one of those won't be a 65k show