The date of the Isle of Wight Festival in 2012 has been moved to avoid a clash with the Diamond Jubilee and half-term holidays.
The three-day event in Newport will move to the 22 to 24 June weekend.
Promoter John Giddings said the dates had been moved "for one year only" following advice from Solent ferry companies.
The new dates are traditionally occupied by the Glastonbury Festival which is taking a year off in 2012.
Since its revival in 2002, the festival has usually been held around the second weekend in June.
A spokesperson for the Isle of Wight Chamber of Commerce said it supported the date change as having festival spectators coming on the same weekend as family holiday visitors would have been "completely detrimental to tourism on the island".
The group estimates the festival generates £15m for the local economy each year.