Teenage Dream is Katy Perry's second studio album and was released on August 24, 2010.
MAY 2010
California Gurls was released as the lead single of the record and went on to be the best selling digital song of 2010.
JULY 2010
The crticially acclaimed title track, Teenage Dream, was released as the second single.
AUGUST 2010
Teenage Dream (album) was released on August 24, 2010.
It debuted at #1 on the Billboard 200, selling 192,000 copies in its first week.
OCTOBER 2010
Firework was released as the third single. It sold over 6.9 million copies in the US and is the best selling song of her career.
DECEMBER 2010
Katy receives four Grammy nominations, including Album of the Year and Best Pop Vocal Album.
FEBRUARY 2011
The remixed version of E.T. featuring Kanye West was released as the album's fourth single.
Katy embarked on the California Dreams Tour.
MAY 2011
Katy was nominated for 12 Billboard Music Awards and won Top Hot 100 Artist and Top Digital Songs Artist.
JUNE 2011
Last Friday Night (T.G.I.F.) was released as the album's fifth single.
AUGUST 2011
Katy becomes the first female in history to achieve five number-one Hot 100 songs from one album, tying Michael Jackson's record.
Katy leads with ten nominations for the MTV Video Music Awards and becomes the only artist in history to have four videos nominated in different categories.
She won 3 awards that night, including Video of the Year for Firework.
SEPTEMBER 2011
Katy sets a new record by becoming the first artist to spend 69 consecutive weeks in the top ten of the Hot 100.
OCTOBER 2011
The One That Got Away was released as the album's sixth single.
DECEMBER 2011
Firework is nominated for Song of the Year and Best Pop Solo Performance for the 54th Grammy Awards.
FEBRUARY 2012
Katy released a reissue of the album titled Teenage Dream: The Complete Confection and premiered the lead single, Part of Me, at the 54th Grammy Awards.
Part of Me debuted at #1 on the Hot 100 and became Katy's seventh #1 single.
MAY 2012
California Gurls was ranked #1 on Billboard's 30 Summer Songs of All Time list.
Katy receives the Billboard Spotlight Award at the Bilboard Music Awards.
The award recognizes Katy's achievement as the only woman to have 5 #1 singles on the Hot 100 from one album.
JUNE 2012
Wide Awake was released as the final single from the Teenage Dream era.
It peaked at number 2 on the Billboard Hot 100, becoming Katy's 8th consecutive top 3 hit.
JULY 2012
Katy Perry: Part of Me, Katy's 3D autobiographical documentary film, was released to the theatres.
Katy breaks the record for the most number of Top 10 singles from one studio album by a female solo artist in the UK.
AUGUST 2012
Teenage Dream becomes the only album ever to have 9 songs top the Billboard Hot Dance Club Songs chart.
SEPTEMBER 2012
Billboard dubbed Katy as their Woman of the Year for 2012.
FEBRUARY 2015
Katy was the headliner of the Super Bowl XLIX halftime show and performed
California Gurls, Teenage Dream and Firework.
AUGUST 2015
Teenage Dream tops 3 million copies in the US.
five years already? i still remember hearing CG and TD on the radio for the first time, how time flies. Anyway happy birthday you pop perfection! great album!
Queen
I still can't believe that Part of Me went #1 and but the masterpiece of "The One That Got Away" and "Wide Awake" didn't
America's taste <<<<
Well, Part Of Me basically went #1 only because of her star power at that time and the GRAMMYs premiere: the song had already leaked two years before its release
Legendary album, the most perfectly executed era of all time
nearly 5 years since I started stanning 
Massive.
