These videos are used for on-line advertising of compilation albums as part of a label's campaign, using short mixes of the album as a soundtrack or sometimes produced as a generic branded animation for several releases.
E4 eSting: #E4SHARK
Narrowly missing out on a place in the final via the public vote, my E4 eSting #E4SHARK can still be seen regularly on the E4 TV channel as one of the 16 finalists.
More information on E4's eStings and be found on their website.
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