Radio edit  In music, a radio edit is a modification, typically truncated, intended to make a song more suitable for airplay, whether it be adjusted for length, profanity, subject matter, instrumentation, or form. Radio edits may also be used for commercial single versions, which may be denoted as the "7" version". However, not all "radio edit" tracks are played on radio. Radio edits often shorten a long song in order to make it more commercially viable for radio stations. The normal length for songs played on the radio is between 3 to 4 minutes. The amount of cut content differs however, ranging from a few seconds to effectively half of a song being cut. It is common for radio edits to have shortened intros and/or outros. In the intro, any kind of musical build-up is removed, or, if there is no such build-up, an extensive intro is often halved. In the outro, occasionally, the song will simply fade out earlier, common on tracks with long instrumental endings, or, if it doesn't fade out, a part before the ending will be cut out. It is also frequent that a chorus is repeated less often towards the end. However, if necessary, many radio edits will also edit out verses, choruses, bridges, or interludes in between. An example is the radio edit of 'Heroes' by David Bowie, which fades in shortly before the beginning of the third verse and fades out shortly before the vocal vamping at the end of the song. Another example is B.o.B's song, "Nothin' On You" featuring Bruno Mars, whose radio edit skips the first five seconds & starts with the sixth second in which Bruno Mars starts singing the first chorus. The second half of the first chorus is sometimes skipped, along with the last 24 seconds which is the normal fade-out part in which B.o.B says, "Yeah, and that's just how we do it/And I'ma let this ride/B.o.B and Bruno Mars", and the radio edit ends with the fourth and last chorus with an earlier fade-out. A third example would be the song, "The Man" by Aloe Blacc, in which the radio edit skips the "I'm the man/Go ahead & tell everybody/What I'm saying ya all" part & the first ten seconds. Also, the third chorus of the song is shortened. Some songs will be remixed heavily and feature different arrangements than the original longer versions, occasionally even being completely different recordings.