Machine Gun Kelly和Blackbear合作，于2020年8月7日发布了一首单曲《My Exs Best Friend》，歌名就透着纠葛。而曲风依然是MGK转型之后偏摇滚的风格，还是挺好听的。并且在美国Billboard Hot 100排行中获得了第28名。
Machine Gun Kelly是一个毫无争议的狂野男孩，他具有磁性的魅力，他总是愿意尝试新的音乐、新的风格，并每次都能取得突破。他出色阿卡贝拉风格说唱如机枪一般，他将自己的整个灵魂都注入了作品中。
My Ex's Best Friend歌词：
Machine Gun Kelly/blackbear：
Ayy
You know my ex so that makes it all feel complicated yeah
It all seems complicated
I read those texts that you sent to yours
But I'll never say it yeah
I'll never say
Machine Gun Kelly：
You walked in my life at 2 AM
'Cause my boys knew girl that's your best friend
Act like you don't see me won't play pretend
Your eyes already told me what you never said
Now we're in the backseat of the black car goin' home
When she ask me "Is it wrong if I come up with you"
We're both drunk on the elevator
When I kissed you for the first time in New York City uh
Machine Gun Kelly：
I swear to God I never fall in love
Then you showed up and I can't get enough of it
I swear to God I never fall in love
I never fall in love but I can't get enough of it
Blackbear：
First off I'm not sorry I won't apologize to nobody
You play like I'm invisible girl don't act like you ain't saw me
Last year was a mess and how I acted was beyond me
But the past still revolves me you text me I ain't responding
But now s**t's done changed go our separate ways
But look at this damage you did to me
I still want nothing to do between you and me
Please don't say nothin' at all sound so true to me
We don't got nothin' to say hey
Machine Gun Kelly：
I swear to God I never fall in love
Then you showed up and I can't get enough of it
I swear to God I never fall in love
I never fall in love but I can't get enough of it
I swear to God I never fall in love
Then you showed up and I can't get enough of it
I swear to God I never fall in love
I never fall in love but I can't get enough of it
Machine Gun Kelly/blackbear：
You know my ex so that makes it all feel complicated yeah
It all seems complicated
I read those texts that you sent to yours
But I'll never say it yeah
I'll never say
Carol Of The Bells（钟声颂歌）钢琴谱-Mykola Leontovych
only my railgun琴谱 简单版 某科学的超电磁炮主题曲 OP
Break My Heart Again钢琴谱-Finneas
My Type钢琴谱-Saweetie
My Type钢琴简谱-数字双手-Saweetie
When My Love Blooms钢琴简谱-数字双手-Studio Dragon
My Heart Will Go On钢琴简谱-数字双手-Celine Dion
When My Love Blooms钢琴谱-Studio Dragon-花样年华-生如夏花主题曲
My Heart Wil Go On钢琴谱-Celine Dion-改编版-我心永恒
My Oasis钢琴谱-Sam Smith Burna Boy
一笑江湖钢琴谱-闻人听书
记忆深处钢琴谱-朴正元
如果能在一起钢琴谱-梁静茹
Suspirium钢琴谱-Thom Yorke
Pink White钢琴谱-Frank Ocean
英雄落幕钢琴谱-燃烧的音符
轻漪的节音钢琴谱-HOYO-MiX
迷宫钢琴谱-七朵花
Benedictus钢琴谱-Karl Jenkins
Everything Stays钢琴谱-Rebecca Sugar
Green Hill Zone钢琴谱-中村正人
I Like You So Much Youll Know It钢琴谱-Ysabelle Cuevas
Eyes On Me钢琴谱-植松伸夫 王菲
Lavenders Blue钢琴谱-民谣
游吟诗人言和钢琴谱-燃烧的音符