The Voice Semi-Final, BBC One: live 19.44 Cheryl might not have the voice of Jaz Ellington or Leanne Wotsit, but this is by far the liveliest and most colourful and summery performance of the evening - just right for getting us in the mood for Eurovision. She also has a very nice tummy, of course. 19.42 (Cole, not Baker. It's not Eurovision yet...). 19.41 While they were busy recapping, I was busy setting up the Eurovision live-blog which I'll be hopping over to when The Voice is over - do join me. But first, here's Cheryl... 19.31 Not sure the viewers took Tyler's performance as seriously as he might have liked. And a pink suit? This should liven things up... 19.26 I would pop some viewer tweets in the blog, but it seems everyone is busy with ice cream, weddings, beer gardens, and... Low ratings this week, do we think? 19.21 "Every time Bo opens her mouth, angels fly out," says Danny. Is that better or worse than the melody that pours out of Max when he's cut open, as previously claimed? I wonder how long it takes Danny to come up with these OTT turns of phrase. It seems there's a reason why his band's called The Script. It's as if he's trying to be like a more whimsical Simon Cowell, who once said that watching an X Factor contestant (can anyone remember who?) was like "eating a sandwich while swimming." 19.16 When I went to the first Voice live show (which lasted 300 HOURS! OK, it was six, but it was still long. And I'm still going on about), Becky was behaving like a right insufferable brat off camera, thus tarnishing my view of her every week. She does have a great voice (and seems to be able to apply it to different genres) but not much "likeability factor" if that's something we're supposed to care about on this show. 19.11 In hindsight, sticky BBQ chicken wings from M&S probably weren't the best choice of desk-based dinner. Sorry if the blog starts to look oilier than Tom Jones's forehead. And I'm blogging about my dinner because I don't have much to say about likeable Leanne's performance. It's a Whitney song, so there are big wavery showy-offy high notes just like we've heard on talent shows a thousand times before. A dubstep version would be far more memorable at this point. 19.08 There have been rather a lot of Whitney Houston songs on The Voice, haven't there? Are they honouring her memory or just making lazy choices? 19.00 Now, if this was X Factor, the other judges would get angry about Jaz Ellington having a "gimmicky" choir. But, because this is The Voice where everyone's so blooming boringly nice all the time, it will be praised. Quite right too, really - Jaz is very obviously a cut above the other singers, with or without chanting children. 18.56 When The Voice started, everyone loved will.i.am. Now (perhaps because of him always playing with his phone during the show? Or faffing around with the Olympic torch? Or talking constant rot about how "dope" everyone is?), viewers seem to be turning against him. 18.52 Bad news: Max has borrowed one of Danny's worldly necklaces. Worse news: And this isn't his best performance. It isn't even my best performance of this song on Singstar. 18.50 "Max is made of music. If you cut him open, melody would pour out," says Danny. Shall we try it? It would be one way to make The Voice more interesting. Under general anaesthetic and medical supervision, obviously. 18.43 Ooh, how's Tyler James going to feel about Vince doing an Amy Winehouse song? It could be the most controversial thing to happen on The Voice since Jessie J's zig-zag parting. 18.39 After The Voice is over (4,256,485 hours to go!) the words "sick," "dope" and "bomb" must reclaim their original uses. Nothing more irritating. 18.36 Ruth Brown is a great singer, obviously, but this is a dreary start. It's summer for one week only - bring on Club Tropicana, Copacabana and, er, Mi Chico Latino. 18.35 "Redial for Tyler James" is trending on Twitter. Only if he can bring me a pizza - the Telegraph canteen is looking a bit sparse today. 18.33 Meanwhile, Danny's wearing one of those gap-yah beaded necklaces best left in Thai airports and early-90s Take That videos. 18.31 Looks like Holly's been rolling around in the park today. Bit embarrassing. 18.30 Only just noticed that Jessie sounds like she's shouting "pygmy!" when she says "pick me!." Who needs Michael Hogan when you have sharp observations like that? 18.28 Right, everyone, come in from the sun, please. The carefree summer fun's over, now you have to watch The Voice with me. 18.10 Really hoping they'll do something tonight to make the semi-final a little more exciting than the live shows have been. Can anyone think of creative uses for those spinny chairs at this point in the show? They seem to be most people's favourite thing about The Voice... which doesn't say very much for the rest of it. Tweet me your suggestions and if they're funny and not rude, I'll bung them in the blog. And, if they're really clever, take credit for them myself. 17.50 Good evening and welcome to our live coverage of the penultimate episode of The Voice UK. I, Isabel Mohan, am your host for the evening so if you have any thoughts about the show, you can tweet me @isabel_mohan, type into the comments box below or email me at isabelmohan@googlemail.com. Since I'm live-blogging Eurovision directly afterwards, it's going to be a very long night of (hopefully) good, (hopefully not) bad and (almost certainly) mediocre singing, so I'd appreciate the company. Last week on The Voice, Cassius, Toni, Aleks and David were sent home. I've forgotten who they are already. The judges now have two acts each left. There's a handy list of who they are at the top of the page for you to study before the show starts in 40 minutes on BBC One.