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Metacritic	(60/100)
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Pitchfork Media	(5/10)
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XXL

Dedication 4 is a mixtape by Lil Wayne. The mixtape was originally supposed to be released on August 15, 2012, but got pushed several times and was released on September 3, 2012. It is the fourth installment of Lil Wayne's Dedication series, following its predecessors The Dedication, Dedication 2 and Dedication 3. It's also the fourth installment of Lil Wayne's "Gangsta Grillz" pentalogy.

On July 15, 2012, Wayne announced that the mixtape will be released some time in August, 2012 stating "Dedikation 4 coming next month."DJ Drama revealed to MTV that Cortez Bryant told him that Wayne "had been mentioning it and was gearing up", and during a stop of Drake's Club Paradise Tour Bryant told him "it was a 100% go".

On August 1, 2012, Lil Wayne confirmed the release date of the mixtape when he called into DJ Drama‘s Hot 107.9 radio show. Wayne then also named three instrumentals ("Cashin Out", "I Don't Like" and "Burn") that he had already rapped over. On August 15, 2012, Mack Maine wrote that the release date of the mixtape got pushed back to a then unknown date. Maine also said that Lil Wayne would announce the new release date, and "something special" (which later turned out to be the track "No Lie") by stating "Announcement and something special will be delivered by @LilTunechi today....#stayTUNEd".

Lil Wayne later explained he didn't release Dedication 4 on August 15, because his friend and fellow rapper 2 Chainz released his debut album Based on a T.R.U. Story on August 14, and he wanted all the attention on 2 Chainz. The official artwork was released through Wayne's Facebook page on August 16, 2012. On August 17, 2012, Nicki Minaj confirmed that she features on the mixtape.

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Wikipedia