The band appeared on ITV special The Girls Aloud Party in 2008 and performed a mashup of their single 'Never Miss A Beat' and the girl group's 'Sound Of The Underground'.
Wilson told The Guardian that he did not try to back out of the show because he thought he was superior to a manufactured pop group.
"These [Crunchie biscuits] were manufactured and I think they're great. Much better than if I tried to make them myself," he said.
"By the same token, it felt like the wrong thing at the wrong time. We tried to pull out, but we were basically... threatened. That's all I can say about that right now."
Wilson added: "It's like that clip of Morrissey and Johnny Marr doing Saturday morning kids' TV on the top deck of a bus, surrounded by children. The presenter says, 'Where are we going?' and Morrissey says, 'Around the bend'."
Kaiser Chiefs today announced the unconventional release of their third album The Future Is Medieval.
Watch Kaiser Chiefs and Girls Aloud play 'Never Miss A Beat'/'Sound Of The Underground' live below: