IZ*ONE的《年下Boyfriend》的歌詞如下：
Girl you got me
With my hands up
Like oh my god
Your so young
But your making me feel like
An old man
With a young girl
Young and naughty
A little bit of bad
With that ass like
That ass is out of this world
Young and flirty
A little bit of shy
And that a girl
With her eyes she make me say oh
Dangerous and sweet
And her love game straight the freaky
With her body weak
Im bouta have my way with her tonight
Like ohhh
Young and naughty
A little bit of bad
With that ass like
That ass is out of this world
Young and flirty
A little bit of shy
And that a girl
With her eyes she make me say ohhh
Boyfriend boy friend boy friend boy friend boy friend boy friend boy friend boy friend boy friend boy friend boy friend yeah yeah yeah
Young and naughty (naughty)
A little bit of bad (bad)
Ohhh ohhh ohhh ohhh ohhh ohhh ohhh ohhh ohhh ohhh yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah
以上為《年下Boyfriend》的部分歌詞，如需完整歌詞，可查看原歌曲獲取。