Groove Is In The Heart into Love Shack

! hmm, certainly different!
What you play next depends on whether you're mixing or not. If you are then there are loads of suitable/complementary tracks such as Robin S-Show Me Love, Ce Ce Peniston-Finally, Jamiroquai-Space Cowboy (remix). If you're not mixing you could still play these three plus others such as De La Soul (depending on the crowd), Source & Candi Staton-You Got The Love, Cornershop-Brimful of Asha etc (actually all of these will also mix into/out-of it).
But obviously the most important factor is how the crowd are reacting to it?! If the track has made the dancefloor busier then I would stick with the same genre/era, i.e. Robin S, if the numbers on the floor have remained the same, what I would play next would depend on how many songs from the same genre/era had preceded Groove Is In The Heart and if playing the song saw numbers on the dancefloor decrease then I would likely switch to a different genre/era.
...pS...Tonsk, I'm intrigued as to how a few times you have "accidentally played Groove is in the Heart"!