update: I tried with all my songs and yes I know it doesn't work with every song. I just think it works if you play the song on time or it works with some sort of upbeat song. But yea, it doesn't work perfectly like you would expect.
Get every inch of your body toned, fit and ready for the beach with this HIIT bikini body circuit. A 30 minute high intensity workout to blast fat, sculpt your body and tone your muscles from head to toe!