Katy Perry answers the top-voted questions from the YouTube Community as presented by Lisa Nova. Over 20500 questions were submitted and 401609 votes cast with the use of YouTube Moderator. New single "Teenage Dream" available now on iTunes: bit.ly

Leo interviews Craig Allen and Eric Kallman of Wieden + Kennedy to find out how Old Spice "The Man Your Man Could Smell Like" was made.

President Obama did an exclusive interview live from the White House in which he answered your questions. After last week's State of the Union address, we invited you to submit your follow-up questions for the President via a Google Moderator tool on the CitizenTube channel (youtube.com/citizentube). You could also vote on which questions you thought should be asked of the President. Steve Grove moderated the interview. We received over 11600 questions and over 660000 votes. Watch the full interview with the President here. Follow @citizentube, @whitehouse, @barackobama, @grove.

Lady Gaga Interview on The Ellen DeGeneres Show

How Japanese addresses work, and other opposites, by Derek Sivers - sivers.org

The Vapors - Turning Japanese CAPITOL (P) 1980 The copyright in this audiovisual recording is owned by EMI Records Ltd

Ingredients for Bento (serves 1) - Potato Salad - 40g Potato (1.41 oz) 10g Carrot (0.35 oz) 400cc Water (1.69 us cup) 1/2 tsp Salt 4cm Cucumber (1.57 inch) A pinch of Salt 1 tbsp Sweet Corn 1/2 tsp Vinegar A pinch of Sugar A pinch of Black Pepper 1 tsp Mayonnaise 1 Cherry Tomato - Chicken Karaage - 50g Chicken (1.76 oz) 2/3 tbs Kimchi Base or 1/2 Soy Sauce + 1/2 Sake + Grated Garlic 1 tsp Potato Starch Frying Oil - Honey Glazed Pumpkin - 40g Pumpkin (1.41 oz) Honey Toasted Black Sesame Seeds 1/8 Apple - Onigiri - 140g Fresh Steamed Rice (4.94 oz) Noritama Furikake - Egg & Seaweed Yukari Furikake - Red Shiso Leaf 2 sheets of 19×5cm Toasted Nori (7.5x2 inch) - Spinach Tamagoyaki - 1 Egg 40g Spinach (1.41 oz) 1 tsp Soy Sauce 1 Vienna Sausage 1/2 tsp Oil **Trick to make bento in the busy morning is preparing the ingredients the night before or using premade ingredients from the market. ** Recently, bento regained its popularity in Japan for its safe and balanced diet and many Japanese bring their own bento to school and work. About Music: Frederic Chopin - Valse in D-flat major "Minute Waltz" - Op. 64 No. 1 Play by Muriel Nguyen Xuan, recording by Stephane Magnenat Creative Commons creativecommons.org

Cool designs and bizarre concept cars take the stage at Japan's motor show, including Honda's 'organic' car skin and a rotating Nissan that talks you out of a bad mood.