In the "Bones" series, Booth & Brennan have gone undercover with wigs & the secret identities of Buck & Wanda, to join a bowling team, a circus and a western rodeo, to find a murderer. All 3 had one thing in common: the groups were closed social groups that don't co-operate with outsiders (like the Witnesses, Mormons, etc.).
So Gadget conceivably could be in a singing competition to ferret out clues.
In the "Bones" series, Booth & Brennan have gone undercover with wigs & the secret identities of Buc
