Kanye West joined by Rihanna during FYF Fest performance – watch

Pair perform 'FourFiveSeconds' and 'All Of The Lights'

Kanye West headlined FYF Fest in Los Angeles last night (August 22), performing a set that included an impromptu appearance by Rihanna.

As reported by Billboard, the singer was watching the show from the audience when West handed her the microphone during a performance of their hit ‘FourFiveSeconds’. RiRi sang the track from the pit but later joined West onstage for a rendition of his 2010 single ‘All Of The Lights’. Click below to watch fan-recorded footage of both moments.

West was only announced as the festival’s Saturday night headliner on Thursday evening after Frank Ocean pulled out of his performance. His set also included a guest appearance from rapper Travi$ Scott.

West took to the stage in front of a multi-bulb spotlight wall and began his performance with a subtle tribute to Frank Ocean with the track ‘No Church In The Wild.’

“We’ll play one song and one song only,” shouted an energetic West as he began performing ‘Niggas In Paris,’ ‘Can’t Tell Me Nothing’ and then ‘Cold.’

West kept the energy level at maximum from start to finish, rallying through brief excerpts and choruses from tracks like ‘I Don’t Like’ , ‘Mercy,’ Blessings,’ ‘New Slaves’ and ‘Blood On The Leaves.’

The rest of the night was filled with crowd-pleasing chart toppers. West left no time for any onstage banter or his trademark rants. “I need my family to help me out right about now. Hey, Travi$,” says West as he called over Scott to join the stage for his tracks ‘Upper Echelon’ and ‘Antidote.’

“I’ll need to stop because I’ve been known for doing this song for 40 minutes and because I have 10 minutes left. But, I still have 10 years of motherfucking hits for you guys,” said West jokingly as he ended ‘Runaway’

“We’re going to do a hit a minute,” shouted West as the countdown began cycling through some of performers biggest hits.

Immediately after jumping into ‘FourFiveSeconds,’ Rihanna emerged from within the audience to sing along the chorus with West.

The reunion was short lived though, as West returned to the song-a-minute countdown with ‘Touch The Sky,’ All Falls Down,’ ‘All Of The Lights’ (with a final Rihanna guest appearance) and ‘Good Life.’

The show came to a close to with ‘Only One,’ a collaborative song with Paul McCartney, which is also tribute to West’s daughter.

Prior to West’s headline set, Bloc Party performed live in what was only their second gig since eadlining Latitude Festival in 2013.

“Good evening Fuck Yeah Fest, my name is, Frank Ocean… haha not really. My name is Kele Okereke,” Bloc Party’s frontman joked as the band arrived on stage. The band immediately began with ‘Hunting For Witches’ before playing a greatest hits set, immediately transitioning right into ‘Positive Tension’ and ‘Real Talk.’

“This next song is about public transport, something that we do not have much of recently and if you know the words, Fuck Yeah Fest, sing it with me,” said Okereke to the audience as he jumps into ‘Waiting For The 7:18.’

“That was nice. How are you guys doing? Are you excited for Yeezy? Ah, I guess I should change the subject now, here’s something a little different,” says Okereke as he took a moment to engage the audience followed by tracks ‘One More Chance’, ‘Octopus’ and ‘Ratchet.’

“Oh my days, oh my days. We’ve come to the end of performance FYF. Can you believe it. There are plenty of great performances here. Thank you for coming out, this is our final show in your country this year and we hope to see you next year when we have our new album out.” The band ended their set with ‘This Modern Love’.

FYF Fest continues tonight (August 23) with Morrissey topping the bill.