Chart News: Dr. Luke scores 2nd most consecutive years with a #1 single

Number Of Years | Producer | Best Known For Producing | First #1 & Week | Final #1 & Final Week

10 | Mariah Carey | Herself | Emotions (October 12, 1991) | Thank God I Found You (February 19, 2000)

8 (tie) | Lionel Richie | Himself | Still (November 17, 1979) | Say You, Say Me (January 11, 1968)

8 (tie) | Dr. Luke | Katy Perry/Kelly Clarkson/Ke$ ha | Girlfriend (May 5, 2007) | Timber (January 18, 2014)

7 (tie) | Steve Sholes | Elvis Presley | Heartbreak Hotel (March 17, 1956) | Good Luck Charm (April 28, 1962)

7 (tie) | George Martin | The Beatles | I Want To Hold Your Hand (February 1, 1964) | Let It Be (April 18, 1970)

Dr. Luke’s #1′s from 2007-2014

2007
Girlfriend – Avril Lavigne

2008
I Kissed A Girl – Katy Perry

2009
My Life Would Suck Without You – Kelly Clarkson
Right Round – Flo Rida (feat. Ke$ ha)

2010
Tik Tok – Ke$ ha
California Gurls – Katy Perry
Teenage Dream – Katy Perry
We R Who We R – Ke$ ha

2011
Hold It Against Me – Britney Spears
E.T. – Katy Perry
Last Friday Night (T.G.I.F.) – Katy Perry

2012
Part Of Me – Katy Perry

2013
Roar – Katy Perry
Wrecking Ball – Miley Cyrus

2014
Timber Pitbull (feat. Ke$ ha)

Katy Perry scored 7 #1′s, Ke$ ha scored 4 #1′s, all other artist scored 1 #1 with Dr. Luke.