Last Saturday (June 11), Bieber posted a video explaining that he had recently been diagnosed with the rare condition, which, according to the Mayo Clinic, “occurs when a shingles outbreak affects the facial nerve near one of your ears.

Bieber, who could be seen struggling to blink, smile or move his right nostril, assured fans that his facial paralysis would subside over time. In a recent update, he said that “each day has gotten better," noting that his Christian faith has helped him cope with the illness.

On Thursday (June 16), concert promoter AEG announced the rest of the North American leg of the pop star’s "Justice" world tour – including his appearance at Summerfest – has been postponed due to his diagnosis.

“Justin continues to receive the best medical care possible, is upbeat about his recovery and is looking forward to getting back out on the road and performing for his fans overseas later this summer,” AEG said in a statement (via Summerfest).

Details about rescheduled dates and refunds will be released shortly.

Bieber’s "Justice" tour has already been postponed several times due to the coronavirus pandemic. It is scheduled to resume on July 31 in Lucca, Italy, and continue through to December 7 in Auckland.

A 2023 leg is due to begin on January 11 in Amsterdam and wrap up on March 25 in Krakow, Poland. He’ll perform 11 UK shows as part of the tour, starting in Glasgow on February 8, 2023, with shows scheduled in Aberdeen, Birmingham, Manchester, Sheffield, and London. He will also perform four nights at The O2 in London.

Justin Bieber 'Justice’ UK Tour 2023:

FEBRUARY 2023

8–Glasgow, OVO Hydro

11 – Aberdeen, P & J Live

13 – London, The O2

14 – London, The O2

16 – London, The O2

17 – London, The O2

22 – Birmingham, Resorts World Arena

23 – Birmingham, Resorts World Arena

25 – Manchester, AO Arena

26 – Sheffield, Utilita Arena

MARCH 2023

4 – Manchester, AO Arena