Hearts to play Rangers & Aberdeen will face Hibs in semis
Hibernian 4-2 St Mirren - Tanser nets for visitors; Youan & Vente hit back; Baccus levels but Boyle nets twice
Ross County 1-2 Aberdeen - Shinnie with stunning 18-yard volley before Baldwin sent off for hosts; Sokler adds second after break before Turner pulls one back
Rangers 4-0 Livingston - Sima gives hosts controversial lead before Yilmaz adds second, De Lucas nets own goal & Jack scores
A tasty-looking quartet, eh?
Two cracking semi-final ties guaranteed, regardless of the draw.
Who fancies another Hampden Edinburgh derby though?
Image source, SNSAberdeen
Image source, SNSHeart of Midlothian
Image source, SNSHibernian
Image source, SNSRangers
The action on the pitch is over, but don't you dare go anywhere.
The semi-final draw will be taking place at Ibrox shortly.
FT: Rangers 4-0 Livingston
Kenny Miller
Former Rangers striker on BBC Sportsound
That was a really well-worked goal from Ryan Jack.
The scoreline is a bit harsh on Livi keeper Shamal George, but it's a really strong, solid performance from Rangers tonight.
An improved performance and a more impressive win for Rangers takes them past Livingston into the Viaplay Cup semi-finals.
Abdallah Sima got the hosts' controversial opener and Ridvan Yilmaz scored a stunning second.
Luiyi de Luca was the unfortunate own goal scorer for the next goal and Ryan Jack rounded off Rangers' second 4-0 win over Livi this season.
Image source, PA Media
Ryan Jack
Ah, nice finish.
James Tavernier's cut back is dummied perfectly by Scott Wright for Ryan Jack, who rattles in his first goal of the season.
Image source, BBC SportWee reminder that the semi-final draw is coming up just after full-time at Ibrox.
You'll be able to follow it right here.
FT: Hibernian 4-2 St Mirren
Kheredine Idessane
BBC Sport Scotland at Easter Road
Nearly nothing for 45 minutes, followed by a second half of bedlam and chaos.
What a performance from Hibs that was, particularly after the break. Nice goals, energy, pace... just what the home fans want to see. Some half-time team talk that must have been from Nick Montgomery, who now has his first ever trip to Hampden to look forward to.
For Saints, finally a defeat after 10 games without one. They looked good, 1-0 up at half-time, and also pretty decent when they pulled it back to 2-2.
Unusually for them, they were a little too lax at the back, which allowed Hibs in four times in one half.
Storm Agnes? Storm Boyle more like.
Image source, SNSMartin Boyle sealed Hibs' win with a late brace
Rangers 3-0 Livingston
Kenny Miller
Former Rangers striker on BBC Sportsound
That is the type of service Abdallah Sima needs when he is in the team.
It is a wonderful pass in from Borna Barisic.
Rangers 3-0 Livingston
Martin Dowden
BBC Sport Scotland at Ibrox
There seemed little chance of anything other than a Rangers win once play got under way. Rangers looked on it.
After a short period of doubt, they are cruising comfortably into the semi-finals.
That draw should be interesting.
Image source, PA MediaRidvan Yilmaz celebrates scoring Rangers' second
Luiyi de Lucas (own goal)
And that should be that.
Abdallah Sima chases a Borna Barisic long ball into the inside left channel and attempts to cross for Cyriel Dessers, but Luiyi de Lucas' intervention carries the ball into the net.
Image source, BBC SportRangers 2-0 Livingston
Last throws of the dice for Livingston. Mo Sangare, Bruce Anderson and Danny Lloyd coming on for Daniel MacKay, Kurtis Guthrie and James Penrice.
Rangers almost score a third on a swift counter-attack with Sam Lammers knocking a James Tavernier cross over.
What a topsy-turvy affair at Easter Road, a real cracker.
Martin Boyle's late double sealed the win for Nick Montgomery's side. He'll make his first voyage to Hampden for the semi-final next month.
St Mirren had taken a first-half lead through a fantastic Scott Tanser strike, but two quickfire goals after the break from Elie Youan and Dylan Vente turned the tie in Hibs' favour.
Substitute Keanu Baccus had pulled the Buddies level but Boyle's brace did the business for the hosts.
Image source, SNSAberdeen are in the hat for the League Cup semi-final draw after seeing off stubborn 10-man Ross County.
Graeme Shinnie's sweetly struck volley opened the scoring before Staggies' captain Jack Baldwin was shown a straight red for hauling down Duk.
The score remained the same until Ester Sokler bagged his first Dons goal in the 80th minute as he got on the end of Leighton Clarkson's well-weighted pass.
A late penalty for the visitors was converted by Kyle Turner but it was just too little too late for Malky Mackay's side.
Image source, SNSMartin Boyle
That'll be that.
Image source, BBC SportRangers 2-0 Livingston
Ridvan Yilmaz comes off to applause as Borna Barisic comes on for Rangers.
He went down in pain moments after scoring, but was up and about again before Barisic took his place.
Hibernian 3-2 St Mirren
Martin Boyle comes so close to his second and the goal that would ultimately seal Hibs' spot in the semi-finals.
But Zach Hemming is having none of it. Big save from the Buddies shot-stopper to deny the winger on the counter.
Rangers 2-0 Livingston
Cyriel Dessers just cannot find a way to goal. He's released in the inside left channel but is crowded out and recycles the ball.
Moments later he gets on the end of a cross but nods wide of the Livingston goal.
You've got to be in it to win it, though.
Rangers 2-0 Livingston
Kenny Miller
Former Rangers striker on BBC Sportsound
Now it is a long, long way back for Livingston.
Rangers 2-0 Livingston
Ridvan Yilmaz is in the mood now. The left-back steps up to take a free-kick and draws a save from Livingston keeper Shamal George.
Hibernian 3-2 St Mirren
Kheredine Idessane
BBC Sport Scotland at Easter Road
Martin Boyle smacks one in off the underside of the crossbar to get the Hibs fans back off their feet and celebrating what they hope will be a place in the semis.
To think hardly anything happened in the first half here. The second half has been bonkers. Four goals - but are there any more to come?