There were wins for Celtic, Dundee United and Hearts on Sunday.
Dundee United booked their ticket into the last four of the Scottish Cup with an impressive 4-1 defeat of Aberdeen, while Craig Bellamy netted his first goal for Celtic as they thumped Clyde.The Dons have impressed defensively for much of the season, but their back four had an off day as The Terrors put them to the sword.
James Grady was the hero for the home side, as he netted a brace, while Alan Archibald and Stephen Crawford (pictured) also found their way onto the scoresheet.
The Dons were on the back foot from the moment Archibald netted on 19 minutes and their troubles increased when Grady notched his first from close range on the half-hour mark.
Richie Byrne handed Aberdeen a lifeline when showing great strength to head home a Jamie Winter free kick on 33 minutes, but they were undone moments before the break when Crawford calmly slotted home after escaping the attentions of his marker.
The game was taken out of the grasp of Aberdeen just after the interval as Grady netted the goal of the game.
The striker collected a ball on the edge of the box, turned and volleyed up and over Ryan Esson to cap a fine day at the office for United.
Celtic ended the cup dreams of Clyde with a 5-0 win on Sunday.
The Division One side resisted for most of the first half, but circumstances contrived against them in the opening 45 minutes.
Just after the half hour, Craig Bryson had a goal disallowed when referee Craig Thomson refused to allow an advantage and, on 40 minutes, Stanislav Varga headed home a Juninho corner.
The goal knocked the stuffing out of Clyde and a penalty on 48 minutes from Alan Thompson handed Celtic a cushion.
Stilian Petrov added a third before Varga got his second of the game, but the final piece of the script saw Craig Bellamy open his account for The Bhoys.
Hearts booked their place in the last four with a battling success over Livingston.
The capital side started the game at a rate of knots and goals from Lee Miller and James McAllister had them in control inside ten minutes.
Livi fought back and ensured a tense final 30 minutes when Craig Easton reduced the arrears, but they could not find a leveller as Hearts held on.
