Leslie Cheung was rumored to have learnt singing from Loong in 1980s for his concert performance. There are however more open and extreme cases in that nature. One (扑/撲) could afford no more than being in the audience twice of the 28 shows (in 24 days just off the top of her head after 26 years) in 1985 before turning 20, per herself on radio in 2011. One (仆) was older than 20 when Loong performed 25 shows in 2011 and released DVD afterwards. The former (扑) has been called a copy of Loong for years although Loong disagreed when approached by the Press in 2005. (A "YES" from Loong would have been easily construed as an affirmation by the Press even though Loong was in the audience only when she (扑) was still in training school.) The latter (仆) uses his 15 minutes of fame as headline for promotion. Just 2/3 years ago, he didn't but his wife talked on radio about his "Loong video viewing" in order to prepare for his one time only big gig. These speak to the integrity (wet finger in the wind), learning habit/style and learning (in)ability of individuals as professional performers. Some (仆) are "neither fish nor fowl" (非驢非馬) by choice, Jack of all trades, master of none always.