Hot 97 held their annual Summer Jam concert yesterday with performances galore.  Some of the bigger names such as Usher, Rick Ross, Drake, Nicki Minaj, Gucci Mane & Waka Flocka, Fabolous, Ludacris,Cam’ron and Julez Santana did their thing, others like Talib Kweli, Maino and J.Cole also made appearances.  Even though 2/3 of Dipset was there, they couldn’t do a reunion because according to Jim, police wouldn’t let him in. Check out the highlight and the many outfits of Ms. Minaj: