Dec 2025 – After a six‑week bout of bronchitis, Manilow’s doctor orders an MRI that reveals a cancerous spot on his left lung; doctors stage it as Stage 1 and say it has not spread, prompting plans for surgical removal and prompting Manilow to call the discovery “pure luck with a great doctor” and urge early testing. [1][6]

Late Dec 2025 – Manilow schedules lung surgery for the end of December, with doctors expecting a month of recovery and confirming that no chemotherapy or radiation will be needed. [1][3]

Dec 2025 – He announces that his January farewell‑tour arena dates are postponed and will be moved to February‑April, while his long‑running Las Vegas residency is slated for a Valentine’s‑weekend return in February. [2][6][9]

Feb 5, 2026 – Manilow posts on Instagram that the lung operation was successful, that he is focusing on rehab and studio work, and that he will delay his Westgate Las Vegas residency (Feb 12‑21) and shift the farewell tour to run Feb 27‑Apr 29; he writes, “I’ve been getting exercise and spending some time in the studio, which has been fantastic,” and adds, “Having a few extra weeks to rest and prepare is what the doctor ordered!” [5][8]

Feb 21, 2026 – He announces via X that arena shows scheduled Feb 27‑Mar 17 are postponed because his lungs are not ready for a 90‑minute set; his surgeon warned he can only sing three songs in a row before needing a break, a visit he describes as “very depressing,” and he pledges to reschedule the affected dates after further healing. [4][7]