I have a friend that books artists/acts and I always enjoy asking him going rates (of course tons of variables go into it). He one time booked a 90s artist for his buddy as a surprise for his wife (the artist had a coupe hits, but one was their wedding song) on their anniversary. I always joke it'd be funny to get the neighbors to chip in and at a neighborhood party randomly some older celeb is spinning tracks.
BUT, back on subject, I bet given the uniqueness of RedFoo's affiliation with us we could get a deal on him...but it'd be cool if it was an unannounced, out of the blue performance. Or even a video board message/teaser to que up the song.