Joshua Bassett's memoir is the "most vulnerable" he's ever been.

The 25-year-old actor is set to release his memoir, Rookie: My Public, Private, and Secret Life, in May, and Joshua admits that his account of his life is brutally honest.

Joshua - who previously admitted to suffering abuse and battling heart failure during his younger years - told People: "I've shared bits and pieces of my story but haven't necessarily shared how I got through what I've been through."

The actor feels he's learned a lot through his life experiences, and Joshua is now keen to share his "practical wisdom" with his fans.

The TV star said: "There's a lot of people don't know, there's a lot my family doesn't even know that's in there. It's definitely terrifying and vulnerable but hopefully leads to a lot of freedom and hopefully people are given a new perspective."

Meanwhile, Joshua previously admitted that he's relished the challenge of balancing his acting career with his music.

The actor - who is best known for playing Ricky Bowen in High School Musical: The Musical: The Series - told Collider: "Sometimes the worlds really do overlap.

"Music is always an incredible outlet for me. It's something that I spend a lot of time doing. You find a balance. I write, a lot of times, when I'm on set or right after I'm on set, and then I'll go into the studio and record some stuff.

"I actually find it helpful to have the difference in creative outlets, between acting and then writing for myself, and then writing for the show."

Joshua starred in High School Musical alongside Olivia Rodrigo, who shot to international stardom amid the COVID-19 pandemic, when she released her debut album.

The brunette beauty previously said: "It helped me keep my sanity when there was so much drama going on. Being in isolation with people I loved and cared about kept me out of the hullabaloo."