This is the ending part of a surprise birthday party for Tom Cruise that had taken place on the Scientology religious retreat vessel called The Freewinds, were Stacy Francis "serenaded" Tom Cruise and his best buddy...the cult leader David Miscavige, with his entourage.
Wikipedia cite:
{{cite news | author = Tiziano Lugli | title = Tom Cruise - Thank You | url = https://www.youtube.com/watch?v=f2CGQbSDadY | work = YouTube | date = November 7, 2011 | accessdate = February 8, 2017 }}
Tom Cruise - Thank You November 7, 2011,
Tom Cruise - Thank You November 7, 2011,