Nicki Minaj refuse to take the stage at Summer Jam because she felt that some members of Hot 97 insulted her by calling her a commercial Rapper that can't sell records.
Once Lil Wayne got wind of the insults, he made an announcement that YMCMB will not be taking the stage at Summer Jam.
It's good to see that the Young Money Organization is unified but this has to be a big disappointment to the thousands of fans who paid their money to see a grand performance by the YMCMB Artists.