In May 2008, Japan named Hello Kitty the ambassador of Japanese tourism in both China and Hong Kong, which are two places where the character is exceptionally popular among children and young women. This marked the first time Japan's tourism ministry had appointed a fictional character to the role. Hello Kitty was also chosen by AH-Software to become a Vocaloid. The choice was attributed to the fact it was their 50th year anniversary. The Vocaloid was named Nekomura Iroha and was released in Japanese. Step into the magical world of Hello Kitty this holiday season with the exclusive Hello Kitty Advent Calendar, perfect for fans young and old alike. Forget the hunt in stores; you won’t find this extraordinary item anywhere but here. With a delightful pink theme and 24 individual compartments, each day leading up to Christmas becomes a treasure hunt filled with surprises that any Hello Kitty aficionado would adore. On April 21, 2020 Hello Kitty made an official crossover live action video called Shimajiro & Hello Kitty in Exercise with Friends in which the mascots of Shimajiro and Hello Kitty joins together to get people to dance and exercise during the Coronavirus pandemic.

Shimizu’s former assistant, Setsuko Yonekubo—the same one who had declared Shimizu’s initial illustration so very kawaii—oversaw Kitty during the boom years. She introduced incremental innovations like the first portrayal of Hello Kitty in a standing pose, but otherwise made a point of hewing closely to her predecessor’s linework, down to using a photocopied template of Kitty’s face to ensure uniformity. Whether because of this conservative approach or because of the ever-changing whims of young children, the first Kitty fad ran out of steam around 1979. Yonekubo took the opportunity to announce her own retirement, for she wanted to start a family of her own. In the 2013 Sanrio Character Ranking, if Hello Kitty reaches 1st place, she will go to your side and hug you. She won the ranking, then did a journey to hug everyone in Japan.

Hello Kitty is included as part of the Sanrio livery at the Japanese theme parks Harmonyland and Sanrio Puroland. For the 50th anniversary of Sanrio, Sanrio and Girl Skateboards collaborated and released skateboards with a Hello Kitty graphic. There is a Hello Kitty store in Africa opening 2013. In 1996 Big Top Productions released Hello Kitty Big Fun Deluxe for Mac & Windows with three guest characters Joey Mouse, Cathy Rabbit, and Thomas Bear making appearances within the game.

In 2019. Hello Kitty appeared on the Funko Pop toys in 2019. The Funko Pop ranges from Hello Kitty with the Cup Noodles, Classic Hello Kitty, Rainbow Pride Hello Kitty which appeared in the America Market including Hot Topic, Box Lunch. The Hello Kitty brand rose to greater prominence during the late 1990s. At that time, several celebrities, such as Mariah Carey and Lady Gaga, had adopted Hello Kitty as a fashion statement. As the mascot of Sanrio, Hello Kitty has never fallen below top 10. Hello Kitty also has the most consecutive wins, being 11 wins in a row. Hello Kitty's popularity began waning in Japan before the year 2000. In 2002, Hello Kitty lost her place as the top-grossing character in Japan in the Character Databank popularity chart and has never recovered. In a 2010 survey, she was in third place behind Anpanman and Pikachu from Pokémon.Hello!" —Kitty as the intro to Hello Kitty and Friends Supercute Adventures comes to a close, just before Keroppi flies in on his kite. As of August 2007, Thai police officers who have committed minor transgressions such as showing up late or parking in the wrong place are forced to wear pink Hello Kitty armbands for several days as penance. Hidden behind each of the 24 doors are delightful collectibles that are sure to light up the faces of children and adults alike. From 10 uniquely designed keychains to 5 fashionable rings, each item is a nod to the iconic Hello Kitty universe, exuding cuteness and charm. Beyond that, a selection of small, irresistible goodies awaits discovery, turning the countdown to Christmas into an enchanting experience. There is a themed restaurant named Hello Kitty Sweets in Taipei, Taiwan. The restaurant's decor and many of its dishes are designed after the Hello Kitty character.