万物皆可做歌，Charlie Puth以开关的声音为灵感来源，在网友的见证和催促下于2022年1月20日发行全新单曲《Light Switch》（爱情开关）。且此曲收录于即将发行的第三张录音室专辑《Charlie》（查理）中。
从2021年9月开始，Charlie Puth就开始在Tik Tok上分享这首歌的灵感、编曲、写词的一系列动作，迄今14支视频已超1.6亿观看。且在同年12月31日的TikTok's New Year's Eve Special上首度表演抒情钢琴版《Light Switch》，并于1月1日上线官方音频片段。歌曲发行几个小时后，由Christian Breslauer执导官方音乐视频在Charlie Puth的YouTube频道首播。
Light Switch歌词：
Yeah
Why you callin' at 11:30
When you only wanna do me dirty?
But I hit right back
'Cause you got that-that, yeah
Why you always wanna act like lovers?
But you never wanna be each others'
I say, "Don't look back"
But I go right back and
All a sudden, I'm hypnotized
You're the one that I can't deny
Every time that I say I'm gonna walk away
You turn me on like a light switch
When you're movin' your body around and around
Now, I don't wanna fight this (No)
You know how to just make me want
You turn me on like a light switch
When you're movin' your body around and around
You got me in a tight grip (Yeah)
You know how to just make me want you, baby
Do you love it when you keep me guessin' (Me guessin')
When you're leaving then you leave me stressin'? (Me stressin')
But I can't stay mad when you walk like that, no
Why you always wanna act like lovers?
But you never wanna be each others'
I say, "Don't look back"
But I go right back and
All a sudden, I'm hypnotized (Hypnotized)
You're the one that I can't deny (Can't deny)
Every time that I say I'm gonna walk away (Yeah)
You turn me on like a light switch
When you're movin' your body around and around
Now, I don't wanna fight this (No)
You know how to just make me want
You turn me on like a light switch (Switch)
When you're movin' your body around and around
You got me in a tight grip (Grip)
You know how to just make me want you, baby
Come on, come on, come on, come on, come on and show me how you do (You do)
You want, you want, you want, you want, you wanna keep me wantin' you (Me wantin' you, girl)
Come on, come on, come on, come on, come on and (Hey), show me how you do (How you do)
You want, you want, you want, you want, you wanna keep me wantin' you
You turn me on like a light switch
When you're movin' your body around and around
Now, I don't wanna fight this
You know how to just make me want to
You turn me on like a light switch
When you're movin' your body around and around
You got me in a tight grip
You know how to just make me want you, baby
Come on, come on, come on, come on, come on and show me how you do (How you do)
You want, you want, you want, you want, you wanna keep me wantin' you (Wanna keep me wantin' you, baby)
Come on, come on, come on, come on, come on and show me how you do (You do)
You want, you want, you want, you want, you wanna keep me wantin' you
