Pals arrive together but leave separately

Katy Perry and Robert Pattinson have been spotted hanging out yet again, this time at a Bjork gig in Los Angeles.

The pair, who were seen watching a wedding rehearsal together last month, met up ‘discreetly’ to attend the concert at the Hollywood Palladium on Saturday night.

But Katy, 28, and Rob, 27, left the venue separately to avoid being photographed together, according to x17Online.com.

The pals have been spending lots of time together recently following Rob’s split from on-off girlfriend Kristen Stewart, 23, last month.

Katy is also newly single after reportedly calling time on her relationship with lothario singer John Mayer, 35, in March.

The Teenage Dream singer has kept quiet on rumours surrounding her friendship with R-Pattz but she did take to Twitter to share a glowing review of the concert they attended together.

Dear Bjork, how do I join your traveling girl cult? #brilliantshow,’ Katy Tweeted on Saturday night.

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Anna Francis