卑鄙的我2的主题曲，就如歌名一样容易让人happy起来。这首歌自13年发布，一共占据了十周的公告牌百强单曲榜冠军，并拿下了35国数位下载排行冠军。
→Pharrell Williams 法瑞尔·威廉姆斯
别名菲董，美国歌手、音乐制作人，身兼制作、谱写、多项乐器演奏、演唱，同时也是Star Trak音乐厂牌老板之一、The Neptunes+N*E*R*D两团老板、服饰及时尚产品研发人、新世代最夯牌艺人。有着独特的沙哑爵士嗓音。他是美国好声音第七季的导师之一。
→出自 G I R L
→歌词
It might seem crazy what I'm about to say
Sunshine she's here you can take a break
I'm a hot air balloon that could go to space
With the air like I don't care baby by the way
Because I'm happy
Clap along if you feel like a room without a roof
Because I'm happy
Clap along if you feel like happiness is the truth
Because I'm happy
Clap along if you know what happiness is to you
Because I'm happy
Clap along if you feel like that's what you wanna do
Here comes bad news talking this and that, yeah!
Well gimme all you got and don't hold back, yeah!
Well I should probably warn you I'll be just fine, yeah!
No offense to you, don't waste your time, here's why!
Because I'm happy
Clap along if you feel like a room without a roof
Because I'm happy
Clap along if you feel like happiness is the truth
Because I'm happy
Clap along if you know what happiness is to you
Because I'm happy
Clap along if you feel like that's what you wanna do
(Happy!) Bring me down, can't nothing
(Happy!) Bring me down, my level's too high
(Happy!) To bring me down, can't nothing
(Happy!) Bring me down, I said
(Happy!) Bring me down, can't nothing
(Happy!) Bring me down, my level's too high
(Happy!) To bring me down, can't nothing
(Happy!) Bring me down, I said
Because I'm happy
Clap along if you feel like a room without a roof
Because I'm happy
Clap along if you feel like happiness is the truth
Because I'm happy
Clap along if you know what happiness is to you
Because I'm happy
Clap along if you feel like that's what you wanna do
Because I'm happy
Clap along if you feel like a room without a roof
Because I'm happy
Clap along if you feel like happiness is the truth
Because I'm happy
Clap along if you know what happiness is to you
Because I'm happy
Clap along if you feel like that's what you wanna do
(Happy!) Bring me down, can't nothing
(Happy!) Bring me down, my level's too high
(Happy!) To bring me down, can't nothing
(Happy!) Bring me down, I said
Because I'm happy
Clap along if you feel like a room without a roof
Because I'm happy
Clap along if you feel like happiness is the truth
Because I'm happy
Clap along if you know what happiness is to you
Because I'm happy
Clap along if you feel like that's what you wanna do
Because I'm happy
Clap along if you feel like a room without a roof
Because I'm happy
Clap along if you feel like happiness is the truth
Because I'm happy
Clap along if you know what happiness is to you
Because I'm happy
Clap along if you feel like that's what you wanna do
Written, Produced and Arranged by Pharrell Williams
Recorded by Mike Larson for I Am Other Entertainment
Recorded at Jungle City Studios, New York, NY
and Circle House Studios, Miami, FL
Assisted by Matt Weber and Matthew Desrameaux
Mixed by Leslie Brathwaite at Music Box Studios, Atlanta, GA
Digital editing and arrangement by Andrew Coleman and Mike Larson
for I Am Other Entertainment
Additional vocals performed by Rhea Dummett, Trevon Henderson,
Ashley L. Lee, Shamika Hightower, Jasmine Murray, and Terrence Rolle
Published by EMI April Music, Inc. o/b/o itself
and More Water From Nazareth (ASCAP)