Justin Bieber crashed Drake Bell's album party on Thursday night (17.04.14).

The 20-year-old singer - who has been repeatedly attacked by the former Nickelodeon star on Twitter in recent months - went out of his way to overshadow his 27-year-old rival at the launch of his new record, 'Ready Set Go,' at Mixology at The Grove in Los Angeles.

The Canadian star, who was accused of being bad role model and branded ''talentless'' by Bell, showed up to the venue in a van and, in a bid to prove his popularity, stuck his head out of the window long enough to cause a frenzy among Bell's fans before driving off, according to gossip website TMZ.com.

He then posted a video of himself being mobbed outside the party on Instagram with the caption: ''So nice seeing my fans at the grove tonight.''

He also wrote on Twitter: ''To all the fans i just met at the grove...I love you. #beliebers

''Sometimes people need to sit down''

The 'Baby' singer then shared a photograph of Bell staring down at his van, with the taunt: ''Why is @justinbieber sprinter van getting more attention than my album release party?'' But he has since deleted the post.

His antics didn't go unnoticed by Bell, who fired back on Twitter: ''@justinbieber dude! Thank you for coming to my party I didn't know you were downstars sorry they didn't let you in!! Should have hmu! (sic)''

He later added: ''@justinbieber Damn! they told me you were there while I was changing. I tried to come get you in time but you split. only saw you drive away''