Next year's Glastonbury Festival lineup could include an impressive amount of classic rock firepower.

NME reports that AC/DC and Fleetwood Mac are considered two of the most likely candidates to headline the festival, which is scheduled to take place between June 24-28. Although it's all purely conjecture at this point, a pair of U.K. bookies have already started laying odds on which acts could end up taking the stage -- a list that also includes Paul McCartney, Elton John, Iron Maiden and David Bowie.

It's easy to understand why AC/DC and Fleetwood Mac are the favorites, given that both bands have new music on the way -- AC/DC's latest album, 'Rock or Bust,' arrives Dec. 2 -- and are gearing up for new tours (both of which feature lineups that have been altered in recent months, with Christine McVie returning to Fleetwood Mac and Stevie Young stepping in for ailing AC/DC co-founder Malcolm Young).

We'll have to wait and see whether the oddsmakers are on the money; in the meantime, if you want to secure your chances of getting to Glastonbury well in advance, head to the festival's site to register for tickets, which are scheduled to go on sale Oct. 5.