"I've been working my hardest to not let that happen. I'm still that same kid that you guys met a long time ago. I want you guys to take this journey with me."
Also at the event, Bieber debuted his forthcoming single What Do You Mean, standing onstage while the song played in the background.
While speaking to the crowd, the Baby hitmaker ensured fans they would not be disappointed with his new volume of work.
"My music is very awesome, actually. I've been working really hard on it," he emphasised. "I've been taking my time. I haven't put out an album in over three years."
On Wednesday, Bieber has also revealed he'd like to work with singer-songwriter John Mayer.
In a quickfire round of questioning as part of a new article for Cosmopolitan magazine, Bieber offers up Mayer's name when asked which artist he'd most like to work with.
He also named Mayer's on/off girlfriend Katy Perry, listing her song Teenage Dream as his favourite summer song.
Bieber also revealed he's terrified of spiders, hates girls in "gladiator sandals" and slow internet, and he boasts "I can hold my breath underwater for two minutes."
- Noise11