The trek was scheduled to start January 30th in Dublin, Ireland.
Summer trek follows his run with Dead & Company.
The UK alt-rock outfit has announced Everything Not Saved Will Be Lost Part 1 and Part 2.
Grande has rescheduled nine dates and canceled two others.
The two-month outing will include four shows that Ozzy had to reschedule after he was sidelined with a staph infection.
The European jaunt gets started in early June with a headlining gig at Finland’s Rockfest.