Manchester City were victorious in their 4th round replay at Eastlands against Notts County, beating the League One club 5-0, to set up a 5th round tie at home against Aston Villa.
Two goals from Patrick Vieira either side of half time put City in control, and three goals in the last 10 minutes from Carlos Tevez, Edin Dzeko and Micah Richards gave the scoreline a resounding look.
Bolton Wanderers, who won a 4th round replay against Wigan in midweek through an Ivan Klasnic goal, repeated the trick once more, with the Croatian international the hero once more in their 5th round tie at Craven Cottage against Fulham.
And in the rounds biggest shock, Arsenal were held by Leyton Orient 1-1 at Brisbane Road.
The Gunners dominated possession but looked lacklustre throughout, and going into the final five minutes only lead thanks to a Tomas Rosicky header.
And in the 89th minute a wonderful individual effort from Orient substitute Jonathan Tehoue earned Orient a replay at the Emirates Stadium in 10 days time.
FA Cup 6th Round Draw
Birmingham City v Bolton Wanderers
Manchester United v Arsenal / Leyton Orient
Stoke City v West Ham United / Burnley
Manchester City / Aston Villa v Everton / Reading