It would be really strange. He would first have to find a way to turn the text of the fanfiction into lyrics. And then he'd need to come up with a melody that fits those lyrics. But again, fanfiction is not meant to be sung usually.
If Peter Parker wanted to sing fanfiction, he might start by choosing a really interesting fanfiction piece. Maybe one that's about his own adventures in a different way than the official stories. Then he'd have to figure out how to make the words flow in a musical way. However, this is all very hypothetical and goes against the normal use of fanfiction.
A practical answer is Chapter 26, because it turns the idea into a concrete scene. The chapter opens with Shen Lan was bent over processing a large stack of press briefs on her..., adds pressure through One might ask, looking across the entire entertainment industry, which..., and ends on If you.
Chapter 38 is the strongest chapter-level answer because it starts from Jiang Li had also observed the girl who had just entered. and follows through on He Yun coldly turned his head and continued to maintain his aloof persona..
Chapter 22 is the strongest chapter-level answer because it starts from Hearing this, Su Yinwan looked at Shang Shaojing with a face full of... and follows through on Jiang Li's righteousness temporarily shut Jiang Yan up, but after a few....
A practical answer is Chapter 36, because it turns the idea into a concrete scene. The chapter opens with But soon, people began to question the authenticity of Jiang Li's bare..., adds pressure through Qi Tianyu, catching the signal, instantly turned to the duo upon entering..., and ends on After.
Chapter 71 is the strongest chapter-level answer because it starts from Shu Yan curled her lips with a hint of jealousy, "When can it be my turn... and follows through on Now they had to work on an empty stomach..
Chapter 81 is the strongest chapter-level answer because it starts from Qi Tianyu, who chose curry beef rice, received a piece of curry and a... and follows through on The summer on the Southwest Plateau is no joke; the sun at three o'clock....
If you want the clearest chapter reference, go to Chapter 40. Early on, [Jiang Li claims she copied this herself?; later, the chapter leans on But her calligraphy is actually this pretty?] [Jiang Li dares to boast,....
The best chapter pointer here is Chapter 37, "Those in the know anticipate the transformation, while the oblivious think it's a fashion show.". It opens with The barrage was suddenly filled with hahas, but the two guests present...
The best chapter pointer here is Chapter 33, "Variety Show of Villains". It opens with Following the announcement, five artists respectively reposted the Weibo—... and closes on Although Su Yinwan was considered half a goddess to him, the whole thing....
Look to Chapter 69 for the clearest answer. It begins with Since the phones issued by the program team couldn't log into Weibo, Wen..., keeps building through However, He Yun, who had witnessed the incident, knew a bit about it., and lands on Wen Jiaojiao immediately hugged her arms proudly.