PJ and Duncan (more commonly know as Ant and Dec)
The line "Let's get ready to rumble" was trademarked and popularized by sports and entertainment announcer Mike Buffer. If you're asking about the opening theme, it's by 2 Unlimited in their song "Get Ready For This."
The Temptations sang Get Ready.
Creative Funk
2 Unlimited produced the song, "Get Ready For This", a Dutch eurodance group. It is a surprisingly common song that has been used in many commercials and trailers.
fastball
Robin sparkles
Lattimore
The name of the group that sang on the loose was Saga in 1983.
Cascada
Love like Woe is sang by The Ready Set.
Etta jones
T. Graham Brown