The "piece" you mentioned likely refers to popular Anime Music Videos (AMVs) featuring the song, particularly those edited with footage from One Piece .
The phrase "" refers to a popular phonk track by the artist my!lane , released in December 2021 as part of the album Sakura's Shadows . my!lane - This Feeling
It features a direct vocal sample from the track " This Feeling " by Noisestorm . The "piece" you mentioned likely refers to popular