Actress Tami Erin is under pressure to respond following reports suggesting a sex tape has surfaced featuring the star.
Erin, best known for taking the title role in 1988 movie The New Adventures of Pippi Longstocking, was apparently filmed in a range of "sexual situations", according to Tmz.com.
Editors at the website report the film is being offered for sale to adult video retailers in Los Angeles.
Many ticket-holders couldn't get into the O2 Arena show on Tuesday night (September 19th) because they didn't bring photo ID to match their booking.
An album re-release, a new song and a documentary mark the singer's legacy this year.
The film will be the first in the Marvel Cinematic Universe led by a person of colour.
The actor plays the titular hero in the forthcoming adaptation.