Artists with the most 3-million-sellers in digital history
#1. Rihanna - 11
-“Love the Way You Lie”
-“We Found Love”
-“Disturbia”
-“Live Your Life”
-“Umbrella”
-“S&M”
-“Don’t Stop the Music”
-“Only Girl (In the World)”
-“Run This Town”
-“Stay”
-“Diamonds”
#2. Bruno Mars - 9
-"Just the Way You Are"
-"Grenade"
-"Locked Out of Heaven"
-"Young, Wild & Free"
-"The Lazy Song"
-"Billionaire"
-"It Will Rain"
-"Nothin' On You"
-"When I Was Your Man"
Fergie - 9
-"I Gotta Feeling"
-"Boom Boom Pow"
-"Big Girls Don't Cry"
-"Imma Be"
-"The Time (Dirty Bit)"
-"Just Can't Get Enough"
-"Let's Get It Started"
-"Fergalicious"
-"Glamorous"
will.i.am - 9
-"I Gotta Feeling"
-"Boom Boom Pow"
-"OMG"
-"Imma Be"
-"The Time (Dirty Bit)"
-"Just Can't Get Enough"
-"Let's Get It Started"
-"Fergalicious"
-"Scream & Shout"
#3. Katy Perry - 8
-"Firework"
-"E.T."
-"California Gurls"
-"Hot N Cold"
-"Teenage Dream"
-"I Kissed a Girl"
-"Last Friday Night (T.G.I.F.)"
-"Wide Awake"
Lil Wayne - 8
-"Lollipop"
-"Down"
-"Let It Rock"
-"Look at Me Now"
-"Forever"
-"How to Love"
-"6 Foot 7 Foot"
-"The Motto"
Kanye West - 8
-"E.T."
-"Stronger"
-"Heartless"
-"Gold Digger"
-"Ni**as In Paris"
-"Forever"
-"Run This Town"
-"Lockdown"
#4. Lady Gaga - 6
-"Poker Face"
-"Just Dance"
-"Bad Romance"
-"Born This Way"
-"Paparazzi"
-"Telephone"
Flo Rida - 6
-"Low"
-"Right Round"
-"Good Feeling"
-"Whistle"
-"Wild Ones"
-"Club Can't Handle Me"
#5. Eminem - 5
-"Love the Way You Lie"
-"Lose Yourself"
-"Not Afraid"
-"Smack That"
-"Forever"
Taylor Swift - 5
-"Love Story"
-"You Belong With Me"
-"I Knew You Were Trouble."
-"We Are Never Ever Getting Back Together"
-"Our Song"
Ke$ha - 5
-"Tik Tok"
-"Right Round"
-"We R Who We R"
-"Your Love Is My Drug"
-"Blow"
Ludacris - 5
-"Baby"
-"Yeah!"
-"Break Your Heart"
-"Tonight (I'm Lovin' You)"
-"Glamorous"
and let's not she has many none promoted and urban singles 
This era isn't over for him either. He still has Treasure (and hopefully Natalie) waiting to smash. 
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