Who said reality TV was easy? A glimpse into the rehearsals for 'Dancing with the Stars' shows pairs of dancers hard at work practicing steps for the upcoming season. Lots of sweat, lots of tripping over feet and still some time for smiles and high fives.

With less than a month until the Sept. 21 premiere, who will benefit most from the time in the studio and who has no hope no matter how many hours they spin and twirl? See Photos After the Jump: