- Name: Kusano Hironori (草野博紀)
- Nicknames: Hiro, Kussa, Notti, Kusatsuchi
- Birthday: February 15, 1988
- Birthplace: Yokohama, Kanagawa Prefecture, Japan
- Height: 170cm
- Weight: 55kg
- Shoe Size: 29cm
- Blood Type: B
- Family: Parents, 2 Older Sisters, 1 Younger Sister
- Pet: Dog (Rikki)
- Favorite Foods: Curry rice, Omurice
- Disliked Foods: Spicy and bitter food, Green Pepper, Eggplant, Tomato
- Weak Point: Ticklish
- Favorite Girl Type: Treats others nicely
- Weird Habits: Touches his nose
- Radio Show: NEWS Kick and Spin Muzik
- Favorite Artists: Usher, Alicia Keys, Beyoncé and Justin Timberlake
Kusano Hironori entered Johnny's Entertainment in February of 2001 at the age of 13. As a Junior, he was a huge fan of Kamenashi Kazuya of KAT-TUN. He was a member of K.K.Kity before being put into NEWS, where he was the youngest and most energetic member.
In 2006 he was photographed with an alcoholic drink in his hand while under the legal drinking age of 20 years. Though he denies the claim that he was drinking it, due to Uchi Hiroki's suspension Johnny's Entertainment issued an apology and put NEWS on hiatus for a year.
In January 2007, Kusano and Uchi returned from suspension but instead of returning to their groups, they were instead demoted to the level of "Trainee" which is lower than the "Junior" title. It was announced in May however that Kusano and Uchi would participate in Shounentai's PLAYZONE 2007 musical.
As of January 2008, Kusano has graduated from the title of "Trainee". Although Uchi Hiroki's solo activities was announced with a dorama, Kusano's are still unclear. Preparations are being made for his own return but since he is still attending Hosei University, no definite plans have been made.
In April 2008, he went to New York to spend a year for singing and dancing lessons.
- PLAYZONE'07 Change2Chance