Gangster girl Ivana Wong sings 《相逢何必曾相識》. The original singers, Ram Chiang and Rita Carpio, also appeared with a duet.
Leanne Li and Louis Cheung portray artistes. Louis portrays a singer. Leanne speaks broken Cantonese in the series. Corinna Chamberlain is also Louis' partner, as they do a dance together.
Hanjin, Eric Kwok, and Grace Ip guest-star as contest judges.
Wong Cho Lam found Edmond Hui to portray the role of an MC.
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Personal Note: Anticipating the singing and the dancing, especially Ram and Rita performing 《相逢何必曾相識》! :D
*Credits to 狂愛TVB