Forget Waterloo. The Swedish fourpiece could be making a spectacular comeback a few miles downriver, at the O2. (Good God, we're slowly turning into a celebrity blog. Please shoot us. Shoot us now.) The Sun reckon that AEG Live, the company who booked Jacko up for all those never-to-be concerts, have made 'mega-bucks' approaches to tempt ABBA out of their long retirement. But any deal seems unlikely and the whole story is based on just one quote: AEG boss David Campbell saying 'There's a little foursome out in Sweden we keep talking to'. Well, you know, maybe it's Ace of Base.