0:00:06 > 0:00:09Hi, I'm Whitney, it's Wednesday and this is Newsround.
0:00:09 > 0:00:12Coming up...
0:00:12 > 0:00:16The policeman dancing on duty.
0:00:16 > 0:00:20And Bolt gets ready for his glorious goodbye in London.
0:00:28 > 0:00:30Now, he's the epic, energetic and always entertaining athlete that
0:00:30 > 0:00:35everyone wants to watch.
0:00:35 > 0:00:37But Usain Bolt is preparing to race for the final
0:00:37 > 0:00:43time before he retires.
0:00:43 > 0:00:45He's running the 100 metres and the 4x100m relay
0:00:45 > 0:00:48at the World Championships, which begin on Friday in London.
0:00:48 > 0:00:51He says that although he's retiring, he's still the fastest man
0:00:51 > 0:00:53in the world and he's 100% confident going into the competition.
0:00:53 > 0:00:58So, what next for Bolt?
0:00:58 > 0:01:00It is going to be hard, because track and field
0:01:00 > 0:01:03is everything for me, you know what I mean?
0:01:03 > 0:01:06I have been doing this since I was, like, ten years old.
0:01:06 > 0:01:09So it is something that I have enjoyed over the years
0:01:09 > 0:01:11has been just a rush, as you said.
0:01:11 > 0:01:15I don't know what I'm going to do.
0:01:15 > 0:01:18This is why I think I want to play football, to change it up,
0:01:18 > 0:01:20you know what I mean?
0:01:20 > 0:01:21It would be a different rush.
0:01:21 > 0:01:23But we will see where life takes me.
0:01:23 > 0:01:25You never know which direction I'll go.
0:01:25 > 0:01:27I might go into acting and do some action movies,
0:01:27 > 0:01:29so that would give me a rush.
0:01:29 > 0:01:32So, you never know.
0:01:32 > 0:01:34More sport now, and England goalkeeper Karen Bardsley will miss
0:01:34 > 0:01:36the rest of Women's Euro 2017.
0:01:36 > 0:01:39It's after getting hurt in Sunday's quarterfinal win over France.
0:01:39 > 0:01:45She broke her leg when she collided with team-mate Steph Houghton.
0:01:45 > 0:01:47Siobhan Chamberlain is now likely to step in to face the Netherlands
0:01:47 > 0:01:51in tomorrow night's semifinal.
0:01:51 > 0:01:54The Downie sisters, Ellie and Becky, will miss October's World Gymnastics
0:01:54 > 0:01:55Championships in Canada.
0:01:55 > 0:01:57Ellie is recovering from ankle surgery and Becky
0:01:57 > 0:01:58from an elbow injury.
0:01:58 > 0:02:00Ellie injured her ankle at the British Championships
0:02:00 > 0:02:02in March, but went on to win four medals in April's
0:02:02 > 0:02:11European Championships.
0:02:11 > 0:02:13Next up, YouTube sensation, singer and Dance Moms
0:02:13 > 0:02:15dancer JoJo Siwa has been answering your questions.
0:02:15 > 0:02:17Want to know why she loves bows so much?
0:02:17 > 0:02:19Or her advice for what to do when you feel nervous?
0:02:19 > 0:02:23We asked and JoJo answered!
0:02:23 > 0:02:24Hey, everyone.
0:02:24 > 0:02:28It's JoJo.
0:02:28 > 0:02:31And I am so excited because you guys sent me your questions.
0:02:31 > 0:02:34I am here hanging out at Newsround and I about to answer your
0:02:34 > 0:02:35questions right now.
0:02:35 > 0:02:36Let's do it!
0:02:36 > 0:02:37Hi, JoJo Siwa. Our question is...
0:02:37 > 0:02:39What inspired you to start selling JoJo Bows?
0:02:39 > 0:02:41PS, we are your biggest fans!
0:02:41 > 0:02:42Oh, they are so cute.
0:02:42 > 0:02:44They are so little!
0:02:44 > 0:02:48What inspired me to start JoJo Bows? Definitely that I just love them.
0:02:48 > 0:02:51They were just kind of my thing and I loved hair bows.
0:02:51 > 0:02:54So I was like, I want these bows to mean something,
0:02:54 > 0:02:59if you know what I am saying.
0:02:59 > 0:03:02So, now, if you wear a bow, you're someone who is nice.
0:03:02 > 0:03:04So it really has a good, positive message.
0:03:04 > 0:03:08I am so happy that all you guys are loving it.
0:03:08 > 0:03:11If you had a different job when you're older, what would it be?
0:03:11 > 0:03:12This is from Anastasia.
0:03:12 > 0:03:14She is nine and she lives in a... High Wyn-combe?
0:03:14 > 0:03:15Wyn-combe?
0:03:15 > 0:03:18Did I say it right? And she lives in High Wycombe.
0:03:18 > 0:03:20I think I would definitely be a doctor.
0:03:20 > 0:03:21I would be a surgeon.
0:03:21 > 0:03:23Hi, JoJo. What is your ideal everyday outfit?
0:03:23 > 0:03:26Jeans or leggings, or little shorts.
0:03:26 > 0:03:28And then I would say a cute T-shirt.
0:03:28 > 0:03:32But it is going to be black, pink and teal or purple or lime green.
0:03:32 > 0:03:34Oh, and of course, how could I forget a bow?
0:03:34 > 0:03:37I would like to know, if you were stuck on a desert island
0:03:37 > 0:03:40for the rest of your life, what three things would you bring?
0:03:40 > 0:03:42I would definitely bring my phone.
0:03:42 > 0:03:43An unlimited supply of water.
0:03:43 > 0:03:46What else?
0:03:46 > 0:03:47I don't know!
0:03:47 > 0:03:49Let's just say...
0:03:49 > 0:03:51rotisserie chicken.
0:03:51 > 0:03:52Hi, JoJo. I do dancing.
0:03:52 > 0:03:55How do you stop being nervous before a show?
0:03:55 > 0:03:57You know what, I'm going to give you some advice.
0:03:57 > 0:04:00I told myself this about two months ago and my life has
0:04:00 > 0:04:01been great ever since.
0:04:01 > 0:04:02I am done being nervous.
0:04:02 > 0:04:05I live my life to the fullest.
0:04:05 > 0:04:06What's going to happen?
0:04:06 > 0:04:10Are you going to mess up?
0:04:10 > 0:04:14Probably not. But if you do mess up, it is OK.
0:04:14 > 0:04:17Honestly, you know your dance, you practised, you worked hard.
0:04:17 > 0:04:18Just go and have fun.
0:04:18 > 0:04:21Next, check out this police man who was born to dance!
0:04:21 > 0:04:23Special Constable Cox was working a festival in Dorset keeping
0:04:23 > 0:04:27everyone safe but he couldn't help joining in.
0:04:27 > 0:04:30Even the Chief of Dorset police said he was proud that his officers
0:04:30 > 0:04:34could do their job and have fun with festival goers as well.
0:04:34 > 0:04:34Loving
0:04:34 > 0:04:35Loving it.
0:04:35 > 0:04:39Now, how many dancing videos have we seen online?
0:04:39 > 0:04:41Well, this one definitely stands out.
0:04:41 > 0:04:42Check out these Australian ladies.
0:04:42 > 0:04:45The three women, all aged between 70 and 80, became internet sensations
0:04:45 > 0:04:47after they posted themselves dancing to Beyonce's hit
0:04:47 > 0:04:51track Single Ladies.
0:04:51 > 0:04:54But the dancing wasn't just for fun, guys - it was in a bid
0:04:54 > 0:04:57to save their bowling club from closure from the local council.
0:04:57 > 0:04:58Absolutely
0:04:58 > 0:04:58Absolutely loving
0:04:58 > 0:04:59Absolutely loving it.
0:04:59 > 0:05:00That's all from me.
0:05:00 > 0:05:00Newsround's back right here in about half an hour.
0:05:05 > 0:05:08Hi, CBBC. My favourite show on your channel is So Awkward,
0:05:08 > 0:05:11because it's so funny and I love all the drama.