Watch as NFL stars Justin Herbert, Cooper Kupp and Puka Nacua join Zach Bryan at LA concert

Chargers star and quarterback Justin Herbert was spotted on stage with crosstown rivals Cooper Kupp and Puka Nacua, as the trio enjoyed an outing at a Zach Bryan concert in Los Angeles this past weekend.

The 26-year-old Herbert, whose facing immense pressure to deliver next season under new head coach Jim Harbaugh, was at Crypto.com Arena - home of the NBA's LA Lakers - on Sunday, singing along in the show's finale, surprising the crowd in the process.

He featured in Bryan's hit 'Revival' with Nacua, who went on stage first followed by Kupp, along with teammate and kicker Cameron Dicker, as they all rejoiced in celebration.

Bryan was in the City of Angels as part of a three-show act from Saturday, June 2, to Monday, June 4. 

Meanwhile, this week marks the last few days of OTAs for the Chargers, as they look to head into the summer feeling confident about a potential deep postseason run this upcoming season.

Herbert has been tipped for a big, first year under Harbaugh after the 60-year-old led Michigan to the National Championship this year. 

The Chargers have already added depth to its offensive line by signing former first-round pick Alex Leatherwood - a priority of general manager Joe Hortiz.

Last season, the Chargers finished with a 5-12 record and bottom of the AFC West.

LA had the 25th-ranked run offense but Harbaugh insists the team still plans to emphasize running the ball. 

'We’re going to have a huge emphasis on the run game, and we gotta block better up front,' Harbaugh, who hasn't coached in the NFL since 2014, said back in February. 

In April, the Chargers selected offensive tackle Joe Alt as the seventh overall pick of the 2024 NFL Draft. 

The team also signed outside linebacker Bud Dupree to help bolster its pass rush in May.