Hilary Duff and Joel Madden Reunited at Madison Square GardenThe special guest appearance came midway through Duff's 'Lucky Me Tour' concert on 5 August. Their reunion at Madison Square Garden reflected that ongoing friendship rather than revisiting the past. The image featured Hilary Duff alongside husband Matthew Koma, Joel Madden, Nicole Richie and Benji himself, with the guitarist captioning the post: 'Family night @ MSG.' For many fans, seeing Hilary Duff and Joel Madden share the stage again was not simply a nostalgic callback to the early 2000s. Judging by the response inside Madison Square Garden, the surprise duet became one of the standout moments of Duff's tour so far.