"31 Reasons" by TJ & Mikkele Hill. The numbers after the lyrics are the number of reasons in that paragraph.
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You’re good at jumping pics and into unicorns
You love Ingrid Michaelson (3)

You’re creative and you’re crafty and you love robots,
Your grammar is impeccable (4)

You’re a super good maid of honor and a ping pong champion
You organize amazing themed parties (3)

You love cooking pancake surprise and reverse trick or treating
You can sing along to all 90s CCM (3)

You’re a huge lakers fan and you love Disneyland,
When you’re there you can point out every celebrity (3)

You’re an awesome lyricist and an even better rapper,
You have good taste in husbands and best friends, (4)

You’re good at writing and you’re very thoughtful,
Which means you give the best advice (3)

You’re funny, pretty, smart, and love Jimmy Fallon
But not as much as you love diet pepsi (5)

You’re a stellar mom, you have an awesome toddler
your unborn baby has a really cool name  (3)

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We think that about covers it
31 reasons that you’re really great

CHORUS:
Emily, Emily it’s your 31st birthday 2014
Whoaaaa Emily
Emily, Emily...Fazakerley
It’s your 31st birthday 2014