LL Cool J, Mario, and O.T. Genasis surprised the crowd at Brandy and Monica's Los Angeles show, part of their 'The Boy Is Mine' tour. The artists helped close out Brandy's hometown shows in style. Genasis performed his hit 'Cut It', LL Cool J followed, and Mario surprised the crowd with a sing-along to 'Let Me Love You'. The night belonged to Brandy and Monica, who reunited after 25 years to celebrate their number-one hit 'The Boy Is Mine' and their enduring careers. The show was filled with nostalgia, with Brandy and Monica trading songs from their iconic discographies, including 'Never Say Never', 'Afrodisiac', 'Miss Thang', and 'After the Storm'. The ballad section was intimate and stirring, with Brandy performing 'Brokenhearted' and Monica's 'Love All Over Me'. The singers chose to let their voices do the talking, with any mentions of their supposed rivalry left to interstitial clips. The highlight of the night was a back-to-back 'Angels' section, with Brandy's 'Angel in Disguise' and Monica's 'Angel of Mine', followed by a duet of 'I Wanna Dance With Somebody'. The two stars held hands and sat together on stage, symbolizing their friendship and unity, and the power of their music. 'It's so good to have each other's support,' Monica said, and Brandy echoed the sentiment, emphasizing the importance of their collaboration.