Next up, legendary R&B crooners All-4-One. Acclaimed for its many romantic chart hits, the American group is known for music that also garners countless awards. Earlier this month, the Grammy-award winners brought their beloved nineties sound to Beijing. They also found time to sit down with our host, Ji Xiaojun, to discuss their group's longevity and the story behind their number-one hit "I Swear", which won them a Grammy for Best Pop Performance by a Duo or Group.