2005 was the year when Billboard started to include digital songs sales to the Billboard Hot 100. This is a list of the #1 songs by year that reached #1 on the Billboard Hot 100 since 2005 and have sold at least 3 million in the US (digital sales).
2005:
DEF 115 WEST*KANYE FEAT. JAMIE FOXX GOLD DIGGER 3 689 602
2006:
ATLG 188 BLUNT*JAMES YOU'RE BEAUTIFUL 3 075 653
WAR 129 POWTER*DANIEL BAD DAY 3 523 588
SHAKIRA FEAT. WYCLEF JEAN HIPS DON'T LIE 3,581,433 (04/2014)
JIVE 76 TIMBERLAKE*JUSTIN FEAT. TI SEXYBACK 4 257 558
COL 160 BEYONCE IRREPLACEABLE / IRREEMPLAZABLE 3 263 253
2007:
187 FERGIE FEAT. LUDACRIS GLAMOROUS 3 076 568
RCA 122 LAVIGNE*AVRIL GIRLFRIEND 3 620 929
DEF 75 RIHANNA FEAT. JAY-Z UMBRELLA 4 260 303
HOL 59 PLAIN WHITE T'S HEY THERE DELILAH 4 584 942
INT 93 FERGIE BIG GIRLS DON'T CRY 3 934 366
INT 43 SOULJA BOY TELL'EM CRANK THAT (SOULJA BOY) 5 028 868
DEF 41 WEST*KANYE STRONGER 5 107 697
RCA 193 BROWN*CHRIS FEAT. T-PAIN KISS KISS 3 067 267
J 96 KEYS*ALICIA NO ONE 3 913 322
2008:
FLO RIDA FEAT. T-PAIN LOW 6,882,000
J 57 LEWIS*LEONA BLEEDING LOVE 4 605 388
R-CM 52 LIL WAYNE FEAT. STATIC MAJOR LOLLIPOP 4 698 969
COLDPLAY VIVA LA VIDA 6,131,000
CAP 64 PERRY*KATY I KISSED A GIRL 4 439 562
DEF 56 RIHANNA DISTURBIA 4 611 765
ATLG 70 T.I. WHATEVER YOU LIKE 4 344 869
LAF 55 P!NK SO WHAT 4 616 719
ATLG 62 T.I. FEAT. RIHANNA LIVE YOUR LIFE 4 530 168
RCA 146 SPEARS*BRITNEY WOMANIZER 3 391 484
COL 39 BEYONCE SINGLE LADIES (PUT A RING ON I 5 228 754
2009:
LADY GAGA JUST DANCE 6,860,000
ATLG 32 FLO RIDA FEAT. KE$HA RIGHT ROUND 5 475 096
LADY GAGA POKER FACE 7,054,000
INT 11 BLACK EYED PEAS*THE BOOM BOOM POW 6 661 622
BLACK EYED PEAS I GOTTA FEELING 8,438,000
SMCM 66 JAY SEAN DOWN 4 437 698
UNIV 45 OWL CITY FIREFLIES 4 808 014
WAR 97 DERULO*JASON WHATCHA SAY 3 907 937
RCNT 36 JAY Z + ALICIA KEYS EMPIRE STATE OF MIND 5 325 489
2010:
KE$HA TIK TOK 6,620,000
INT 103 BLACK EYED PEAS*THE IMMA BE 3 859 014
MER 107 CRUZ*TAIO FEAT. LUDACRIS BREAK YOUR HEART 3 806 822
ATLG 178 B.O.B NOTHIN' ON YOU 3 135 114
RCA 47 USHER FEAT. WILL.I.AM OMG 4 749 825
INT 44 EMINEM NOT AFRAID 5 010 672
PERRY*KATY FEAT. SNOOP DOGG CALIFORNIA GURLS 5,604,000 UPDATED
INT 22 EMINEM FEAT. RIHANNA LOVE THE WAY YOU LIE 6 million
CAP 61 PERRY*KATY TEENAGE DREAM 4 565 781
MARS*BRUNO JUST THE WAY YOU ARE 6,283,105 (04/2014)
INT 82 FAR*EAST MOVEMENT FEAT. CATARA LIKE A G6 4 141 273
KE$HA WE R WHO WE R 4 million
DEF 135 RIHANNA ONLY GIRL (IN THE WORLD) 3 477 234
RCA 80 P!NK RAISE YOUR GLASS 4 149 747
PERRY*KATY FIREWORK 6,545,000 UPDATED
2011:
MARS*BRUNO GRENADE 5,701,000
ATLG 81 KHALIFA*WIZ BLACK AND YELLOW 4 144 922
INT 95 LADY GAGA BORN THIS WAY 3 914 009
PERRY*KATY E.T. 5,700,000 UPDATED
DEF 126 RIHANNA S&M 3 576 008
ADELE ROLLING IN THE DEEP 8,060,000
RCA 48 PITBULL FEAT. NE-YO, AFROJACK GIVE ME EVERYTHING 4 748 964
LMFAO FEAT. LAUREN BENNETT & G PARTY ROCK ANTHEM 7,821,000
CAP 137 PERRY*KATY LAST FRIDAY NIGHT (T.G.I.F.) 3 462 154
MAROON 5 FEAT. CHRISTINA AGUIL MOVES LIKE JAGGER 6,347,000
COL 27 ADELE SOMEONE LIKE YOU 5 621 328
DEF 42 RIHANNA FEAT. CALVIN HARRIS WE FOUND LOVE 5 057 149
2012:
AAM 19 LMFAO SEXY AND I KNOW IT 6 167 076
COL 58 ADELE SET FIRE TO THE RAIN 4 596 063
RCA 67 CLARKSON*KELLY STRONGER (WHAT DOESN'T KILL YO 4 403 522
FUN. FEAT. JANELLE MONAE WE ARE YOUNG 6,830,000
GOTYE FEAT. KIMBRA SOMEBODY THAT I USED TO KNOW 7,545,000
JEPSEN*CARLY RAE CALL ME MAYBE 7,304,000
ATLG 109 FLO RIDA WHISTLE 3 791 107
117 SWIFT*TAYLOR WE ARE NEVER EVER GETTING BACK 3 681 169
OCAM 71 MAROON 5 ONE MORE NIGHT 4 337 675
DEF 184 RIHANNA DIAMONDS 3 093 703
MARS*BRUNO LOCKED OUT OF HEAVEN 4,750,175 (04/2014)
2013:
MACKLEMORE & RYAN LEWIS FEAT. THRIFT SHOP 7,488,133 (04/2014)
MARS*BRUNO WHEN I WAS YOUR MAN 4,372,066 (04/2014)
P!NK FEAT. NATE RUESS JUST GIVE ME A REASON 4,716,347 (04/2014)
MACKLEMORE & RYAN LEWIS FEAT. CAN'T HOLD US 4,735,069 (04/2014)
THICKE*ROBIN FEAT. T.I. & PHAR BLURRED LINES 6,964,357 (04/2014)
KATY PERRY - ROAR - 5,213,573 UPDATED (04/2014)
LORDE - ROYALS - 5,439,085 (04/2014)
MILEY CYRUS - WRECKING BALL - 3,437,184 (04/2014)
EMINEM FEAT. RIHANNA - THE MONSTER - 3,326,598 (04/2014)
2014:
PITBULL FEAT. KE$HA - TIMBER - 3,742,888 (04/2014)
KATY PERRY FEAT. JUICY J - DARK HORSE - 4,353,993 (04/2014)
PHARRELL WILLIAMS - HAPPY - 3,678,789 (04/2014)
Some Bonus 3 million+ digital sellers that reached #1 before 2005:
1982:
SURVIVOR EYE OF THE TIGER 3,840,000
1987:
BON JOVI LIVIN' ON A PRAYER 3,233,000
1988:
Guns N' Roses - "Sweet Child O' Mine" 3,126,000
2002:
EMINEM LOSE YOURSELF 6,019,380 (04/2014)
2004:
USHER FEAT. LUDACRIS & LIL JON YEAH 4 million