Dec 2025 – After weeks of bronchitis, doctors order an MRI that discovers a cancerous spot on Manilow’s left lung; he calls the finding “pure luck with a great doctor” and announces the early‑stage diagnosis, noting that the cancer has not spread and surgery will be required[1][7].

Late Dec 2025 – Manilow undergoes surgery to remove the localized lung spot; doctors confirm the procedure will likely cure the cancer without the need for chemotherapy or radiation[1][3].

Jan 2026 – He estimates a month of recovery and officially postpones his January farewell‑tour arena dates, rescheduling them to a February‑through‑April window and moving his Las Vegas residency to Valentine’s weekend[2][7].

Feb 5 2026 – On Instagram he shares that the operation was successful, says he is “getting exercise and spending some time in the studio, which has been fantastic,” and announces the postponement of his Westgate Las Vegas residency (Feb 12‑21) to allow extra rest[6][9].

Feb 12‑21 2026 – The originally scheduled Las Vegas residency, a key stop on his farewell tour, is delayed per his doctor’s advice, pushing the shows to an unspecified later date[6][9].

Feb 21 2026 – Manilow posts on X that his body “isn’t ready for a 90‑minute performance,” citing his surgeon’s warning that his lungs need more time; he describes the doctor’s visit as “very depressing” and says he can only sing three songs in a row before needing a break[5][8].

Feb 27 – Mar 17 2026 – The arena concerts originally set for this period (Florida, Carolinas, Ohio, Kentucky, Tennessee, Maryland) are postponed, with plans to reschedule once his lungs recover[5][8].

Mar 2026 – The Columbus, Ohio show originally slated for Jan 18 is first moved to March, then later shifted again as health setbacks continue[4].

Feb 27 – Apr 29 2026 – The revised farewell‑tour itinerary runs across nine U.S. cities (Tampa, Columbus, Charleston, Orlando, Sunrise, Estero, Greensboro, Jacksonville, Duluth) after the January postponements, aligning with his month‑long recovery plan[6][10].

Aug 2 2026 – The Columbus concert finally lands on this date, with all previously sold tickets honored; Manilow explains the delay on Instagram, saying his “body knew what my heart didn’t want to admit: I wasn’t ready,” and frames the show as part of his farewell tour[4].