Sweet.

He sounded pretty good there

Love how surprised Beyonce is!

http://youtu.be/eI1pax1Zk_A?t=18s

Better sound quality

Joe McElderry ‏@joemcelderry91 6h
SO I HAVE ACTUALLY JUST SANG WITH BEYONCE!! she kept passing the mic back to me!!!!!! i can die a happy man now!!!!!!!

Really cool! It must have been such a great moment for him.

Of course some people have to say she knew who he is... It's not a diss, but I don't think that he is on her radar: she is a worldwide superstar from the US.

So thrilled for him - he sounded absolutely stunning and for her to say he was pitch perfect was the icing on the cake for him - just shows dreams can come true.

One of Beyonce's backing singers tweeted this

Tiffany Moníque ‏@Divatiff 7h
Shout out to @joemcelderry91 who made the whole arena stop & listen when he blessed the mic during "Love On Top". http://www.keek.com/!IwCZbab

For those that maybe don't follow Joe closely you won't know how much this will mean to Joe - he is a huge fan of Beyonce's - and for Beyonce to be so impressed with his voice was a great moment.

Well Joe is always technically perfect. I am not a fan of him but he has a perfect voice.

This.

He won Popstar to Operastar AND X Factor after all !

Nice to read positive comments on Joe. He is probably the nicest guy from the show ever. As well as super-talented.

Good for Joe. His voice is immaculate and even though the mainstream pop thing didn't work out he still has bags of talent and no one can every question that. I don't think he hit a bum note once during his run on XF and that's a rare thing indeed.

I'm so pleased for him!

Aw Joe, recording a song with Dionne Warwick last week and singing with Beyoncé this week. Fantastic!

Not to mention in the US next month singing at a gig Adam Lambert is headlining!

So happy for him! love it when good things happen to good people esp when they're so talented

It's nice to see Joe doing well. His first album wasn't my cup of tea but he's been very good at the classical crossover genre, and his latest album is a decent blend of pop and classic. He seems like such sweet lad too, so I wish him the best.

good for him, the most sucessful male x factor winner shayne ward has tanked, so has steve and leon, matt cardle makes me sad how hes fallen so much and 1d has became the biggest stars in the world.. and james had only had 1 single. joe is successful and proves that male winners can do well if they take some time to develop after the show, who knows maybe leon and matt will become famous some day, however steve will forever be singing in empty bars.

I'll take the oportunity to ask publicly why people record video with their phones in Vertical???

Still, it's better than nothing!

Ha, yeah that is a pain.

Beyonce and Joe are great.

There are some clips on YouTube which are horizontal. None are going to be perfect but it shows the atmosphere at the gig.

Aw Good for him! He has a very lovely voice.

This was a dream come true for Joe and I hope they duet at some point in the future

I can't see that happening as they are very different artists, but I could well imagine Joe releasing his version of the song very soon.

This has to be one of my favourite Joe moments as I know how much he loves Beyonce. Getting to sing with her is a dream come true.

One flop paired with a superstar starting to flop. Should create a double-dip flop!!!