After posting about Frisky and Mannish yesterday, I was put in mind of Supergirly whom I saw a couple of times in Edinburgh in the early 2000's. At the time they were a duo and for a while they achieved a degree of fame when they became a fixture on Live and Kicking.
They used to perform great parodies of (then) current pop songs and extracted a great deal of fun from the banality of the lyrics as well as the acts themselves.
Supergirly were Louise McClatchy and Jai Simone. A short trawl of the interweb/You Tube establishes that Louise has gone solo but is still performing as Supergirly, while Jai seems to have been airbrushed out of history. Even the Wikipedia entry redirects you to Louise's details - there is surely a story to be told there.
There is more of the above performance (but in poorer quality) here - including "When's he going to come out", a Ricky Martin parody.
As ever, enjoy!