Before 50 Cent joined Chris Brown on stage with French Montana at Hot 97's Summer Jam, Fif and G-Unit was scrutinized by security when they were trying to enter MetLife Stadium. According to reports, G-Unit was almost not let into the venue because they were searched so heavily.

Last Year during G-Unit's reunion at Summer Jam, 50 Cent and crew got into a physical altercation with Slowbucks while on stage during the performance. Slowbucks had his chain stolen, which later Fif denied his involvement in the altercation. After, Slowbucks would later seek legal action against 50 Cent.

This year 50 Cent and G-Unit were brought out during Brown's set to much of the audience surprise and performed “What Up Gangsta” and “Many Men.” Watch clips from the performance below.

Chris Brown Brought Out @50Cent #SummerJam #2015

A video posted by (DA)INFAMOU$ DJ KG (@thablendchemist) on

50 came when when French was rocking with Chris Brown and showed love #SUMMERJAM

A video posted by Mikey Fresh (@mikey_fresh1) on