Claim: The Time of Our Lives was released by Miley Cyrus.

The Time of Our Lives is the first extended play -LRB- EP -RRB- by American recording artist Miley Cyrus . The EP was released on August 28 , 2009 by Hollywood Records , initially as a United States ' Walmart exclusive . With alterations in artwork and track listing , an international edition was issued October 16 , 2009 . The Time of Our Lives was conceived as a release to accompany Cyrus ' newly launched apparel line with Max Azria . The tracks on the EP were primarily composed by John Shanks and Dr. Luke , who also produced their respective cuts . Cyrus co-wrote one out of seven songs on The Time of Our Lives ; one is a cover and another is a live rendition . Musically , the uptempo tracks on the record are in the pop rock and dance-pop genres while ballads are largely soft rock . Lyrically , it explores the themes of romantic relationships , among other subjects .   The Time of Our Lives received generally positive reactions from critics , with some reviews suggesting that the EP was an effective step into adulthood for Cyrus . Some reviews were critical of the ballads which appear on the record , however . The EP was a commercial success , charting within the top ten in nine countries . In the United States , The Time of Our Lives peaked at number two on the Billboard 200 and was certified platinum by the Recording Industry Association of America -LRB- RIAA -RRB- . Moreover , the EP had success internationally , peaking at number three in Greece , number five in Austria , and number six in Spain .   Two singles were released from The Time of Our Lives . The lead single , `` Party in the U.S.A. '' , became Cyrus ' best-selling effort up to that point , peaking at number two in the Billboard Hot 100 . It also became one of the best-selling singles in the United States and Hollywood Records ' best - and fastest-selling single . The second and final single released from the EP was `` When I Look at You '' . It was used to promote the 2010 film The Last Song , which Cyrus starred in . Unable to match `` Party in the U.S.A. '' 's success , the single appeared in the top twenty of charts in Australia and the United States . Cyrus performed songs from The Time of Our Lives live numerous times . Her performance at the 2009 Teen Choice Awards caused a media uproar because of its sexuality . She embarked on her first world tour , the Wonder World Tour , to promote the EP in late 2009 .