The 32-year-old, who appeared in Big Brother 10, has been seen with a keyboard and a skull at the London try-outs.
A source told Metro: "Angel performed with a keyboard and an amplifier, she was also carrying a fake human skull, although it is unclear how this was used in her audition."
McKenzie wrote on Twitter: "got audition for Britain Got Talent, 2d december at ExCel, is anyone up there got it too? (sic)"
The ITV talent contest is currently auditioning thousands of hopefuls. The televised shows begin in spring 2011.
It was earlier suggested that X Factor star Wagner Carrilho will also be auditioning for the show.