As a songwriter/producer, he has earned 27 top ten Billboard hits this decade, but which is his worst?

2010
#7 Kesha f/ 3OH!3, Blah, Blah, Blah
#9 3OH!3 f/ Kesha, My First Kiss
#4 Kesha, Your Love Is My Drug
#1 Katy Perry f/ Snoop Dogg, California Gurls
#2 Taio Cruz, Dynamite
#10 B.o.B. f/ Rivers Cuomo, Magic
#8 Kesha, Take It Off
#1 Katy Perry, Teenage Dream
#1 Kesha, We R Who We R

2011
#1 Britney Spears, Hold It Against Me
#7 Kesha, Blow
#1 Katy Perry f/ Kanye West, E.T.
#3 Britney Spears, Till The World Ends
#1 Katy Perry, Last Friday Night (T.G.I.F.)
#7 B.o.B f/ Lil Wayne, Strange Clouds
#3 Flo Rida, Good Feeling
#3 Katy Perry, The One That Got Away

2012
#6 Jessie J, Domino
#1 Katy Perry, Part of Me
#5 Rihanna, Where Have You Been
#2 Katy Perry, Wide Awake
#2 Kesha, Die Young

2013
#1 Katy Perry, Roar
#1 Miley Cyrus, Wrecking Ball
#1 Pitbull f/ Kesha, Timber

2014
#1 Katy Perry f/ Juicy J, Dark Horse

2015
#2 Maroon 5, Sugar
#9 Pitbull & NeYo, Time of our Lives

TiK ToK isn't included because it entered the top ten prior to 2010.

the decline

2015
#2 Maroon 5, Splenda
#9 Pitbull & NeYo, Time of our Lives

Ive never heard these wtf

#7 B.o.B f/ Lil Wayne, Strange Clouds or #10 B.o.B. f/ Rivers Cuomo, Magic

Time of our Lives, Part of Me or Domino.

right?

Domino

Sugar. That song is heated trash.

What's a splenda?

Magic

But omg Ke$ha and Katy were popping out all his hits this decade

Good Feeling was tragic.

Sugar packet for coffee .

Oops, that should be Sugar.

No

The sample and the bridge were everything

Splenda

ET is just... deplorable.