All the dates on Maceo's upcoming European tour. March 6th to April 7th) are now cancelled.
Does this mean he's gonna tour with Prince (on all the dates). Or is there a 'problem'?

He was absent for the Ellen Degeneres taping last Tuesday... and the Catalina Bar and Grill surprise show in Hollywood that was supposed to take place last weekend was alledgedly cancelled due to a 'problem' with one of the band members. Hmmmm.

From what I can understand Maceo has cancelled his tour due to "sickness", so am sure that there is something up, that wouldn't be said if he was cancelling to do Prince dates, and very unlike Maceo to cancel Europe without a serious reason.
I've put in a mail to his management, and would like to repeat here that we wish him all the best and a speedy recovery...