How is “sing of” used?

In Ralph Breaks the Internet (2018), one line is: “So, this steering wheel you sing of,”

Which movie is “sing of” from?

The clip at the top of this page is from Ralph Breaks the Internet (2018).

So, this steering wheel you sing of,

7 作品で登場 · 1 本目

句動詞

to mention sth in a song or a poem, especially to praise it

フォーマル · 古風 · 7 本の映画に登場

定義：Oxford Advanced Learner's Dictionary 第 9 版