CANADIAN HOT 100
Number-one debuts
"Crack a Bottle" by Eminem, Dr. Dre & 50 Cent (February 21, 2009)
"Today Was a Fairytale" by Taylor Swift (February 20, 2010)
"Wavin' Flag" by Young Artists for Haiti (March 27, 2010)[8]
"Not Afraid" by Eminem (May 22, 2010)[9]
"California Gurls" by Katy Perry featuring Snoop Dogg (May 29, 2010)
"Hold It Against Me" by Britney Spears (January 29, 2011)
"Born This Way" by Lady Gaga (February 26, 2011)
"Part of Me" by Katy Perry (March 3, 2012)
"Boyfriend" by Justin Bieber (April 14, 2012)
"We Are Never Ever Getting Back Together" by Taylor Swift (September 1, 2012)
"Roar" by Katy Perry (August 31, 2013)
Artists with the most number-one hits
9 number-ones (
+1)
Katy Perry (9) : ("I Kissed a Girl", "Hot N Cold", "California Gurls", "Firework", "E.T.", "Last Friday Night (T.G.I.F.)", "Part of Me", "Wide Awake",
"Roar")
Rihanna (8) : ("Umbrella", "Take a Bow", "Love the Way You Lie", "Only Girl (In the World)", "S&M (Remix)", "We Found Love", "Diamonds", "Stay")