Chelsea 5-1 Man City
Manuel Pellegerini's youthful side were powerless to resist as Chelsea rocked four second half goals past Willy Cabalerro to send City crashing out of the FA Cup at the fifth round.
Chelsea ruthlessly punished the inexperienced City side in the second half after going into the break level at one apiece following an open first 45 minutes.
Diego Costa put Chelsea in front with a diving header after Eden Hazard's delightful ball into the box, in the 35th minute, but that lead lasted just 60 seconds as David Faupala scuffed home Kelechi Iheanacho's cross.
The Blues came out firing in the second half though as Willian finished brilliantly in the 48th minute to put the home side back in front, before Gary Cahill smashed home a volley after another Hazard cross was deflected into his path.
Chelsea didn't let up there however, as they smelled blood with the excellent Hazard scoring a fourth before Bertrand Traore looped a header over Cabalerro late on to complete the scoring.
There was time for another when Traore was felled in the box by Martin Demichelis, but Oscar's penalty was saved.
Blackburn 1-5 West Ham
Dimitri Payet led the charge as West Ham romped into the FA Cup quarter finals after dismantling Championship strugglers Blackburn at Ewood Park.
French international managed to bag himself a brace, including a stunning free kick while Emmanuel Emenike also netted twice to open his West Ham account.
Blackburn did threaten to cause an upset early on as they matched West Ham across the park and took the lead thanks to Ben Marshall's fine left footed strike that beat Darren Randolph in his bottom corner.
The Hammers soon found their rhythm though, and Victor Moses put them back on level terms when he smashed past Jason Steele.
West Ham would go into the break one ahead after Payet's brilliant free kick in the 36th minute.
CLASS: Dimitri Payet's freekick for West Ham. What a talent.https://t.co/D0ollUMCjl
— BBC Sporf (@BBCSporf) February 21, 2016
Via BBC Sporf/ Twitter
Blackburn's hopes of launching a comeback were severely dented when Chris Taylor picked up a second yellow and things went from bad to worse as Emenike struck just after the hour mark for his first West Ham goal.
Both sides were reduced to ten men when Cheikhou Kouyate saw red for a last man foul on Adam Henley, but it mattered little as Emenike grabbed his second when he fired past Steele after a number of stepovers.
Then West Ham's jewel in the crown popped up for their fifth, running from deep and ghosting past defenders before placing the ball past Steele.
— Uber West Ham (@UberWestHam) February 21, 2016
Tottenham Hotspur 0-1 Crystal Palace
Martin Kelly's goal on the stroke of half-time was enough for Crystal Palace to cause a minor shock at White Hart Lane on Sunday.
The full back slammed the ball past Michel Vorm after receiving the ball on an overlapping run from Wilfried Zaha, who continues to impress in a Palace jersey.
Spurs may count defeat as a blessing in disguise as there squad continues to be stretched as they compete for European and domestic honours.
Emmanuel Adebayor also made his return to White Hart Lane and was widely booed by his parent club's supporters.
Adebayor misses decent opening. Palace fans chant: "That's why you're paying him." Ouch.
— John Cross (@johncrossmirror) February 21, 2016
FA Cup quarter-final draw:
Everton v Chelsea
Reading v Crystal Palace
Arsenal/Hull v Watford
Shrewsbury/Man United v West Ham