Michael Jackson fans from all over the world have congregated¹ at London's O2 arena², where the star had been due to begin his run of 50 concerts on Monday.

Michael Jackson在世界各地的粉丝齐聚伦敦O2广场，这是这位巨星原本定于星期一举行的50场告别演出开始的地方。

Tributes were left at the O2 after Jackson\'s death

Fan sites and Facebook groups had been encouraging fans to bring candles and flowers for the vigil（值夜）.

About 600 people are at the venue³, adding messages to a wall of tributes and conducting Jackson sing-a-longs. Others are sitting in contemplation（计划中）.

There is a "light-hearted, celebratory（快乐的，兴高采烈的）" mood, says BBC reporter Michael Osborn.

Fans held a minute's silence at 1830 BST to mark the time when the doors to the concert would have opened.

"I've come here to celebrate his life and I want to feel a bit closer," Alison Pyman, 27, from Cleethorpes told the BBC.

"We've been reminiscing（追忆） and sharing memories with everyone. When more people arrive there will quite a party atmosphere."

Thirty-one-year-old Jasper Haughton is one of the fans who had been expecting to see his hero on stage tonight.

"We should have been going to the concert but we're standing⁴ here instead," he said. "It doesn't make any sense."

Haughton, who lives in Copenhagen, Denmark, will be in London for a week, having bought tickets for the first five of Jackson's 50 comeback shows.

"We're here for grieving, but the main thing is a celebration of Michael," he added.

'Last masterpiece'

Following Jackson's death on 25 June, floral（花的，植物的） tributes（颂词）, cards and messages have been left outside the O2.

Another London location where a shrine⁵（圣地，神龛） to the singer has built up is the Lyric⁶ Theatre in the West End, home of Jackson tribute show Thriller⁷ Live.

Jackson's string of This Is It shows completely sold out shortly after going on sale in March.

The singer told fans that the concerts would be his final performances in London.

Following his death, footage（影片的镜头） of his rehearsals⁸（排练，彩排） in Los Angeles just days before he died was released.

While no concerts are currently scheduled to replace Jackson's performances, organisers are discussing the possibility of staging a show using the production for the This Is It concerts.

"I think at some point we'll show Michael's last masterpiece, This Is It, to the world," AEG president Randy Phillips told Billboard⁹.

Phillips added that 29 August - which would have been Jackson's 51st birthday - would be an ideal time for the event, but he was unsure if it would be ready in time.