Prince Harry gave a moving speech in his first public performance following Prince Philip’s funeral — but pregnant wife Meghan was noticeably absent.

The Duke and Duchess of Sussex are the campaign chairs for Global Citizen’s COVID-19 vaccination campaign, and were set to take the stage together to “deliver an important global message for vaccine equity during the event.”

Global Citizen’s Vax Live: The Concert To Reunite The World exclusive, which will broadcast next weekend, was pre-taped by Selena Gomez, Prince Harry, Jennifer Lopez, and other celebrities. Meghan Markle, who is a co-chair for the event with Harry, was not photographed or seen with them in person.

Instead, Harry went alone, earning a rock-star reception when he spoke to an audience of thousands of vaccinated frontline staff at SoFi Stadium in Los Angeles during the taping of the star-studded gig.

Why didn’t Meghan show up?

It’s likely the same reason Meghan didn’t attend Prince Philip’s funeral in England last month: she’s really pregnant with her and Harry’s second child, and there’s still a pandemic going on, causing large gatherings—even TV productions like this one with COVID testing and hopefully several vaccinated participants—risky.

Meghan and Harry have not mentioned whether or not they have received their vaccinations. However, since they just became eligible in California on April 15, it’s possible that they aren’t completely vaccinated yet due to the period between doses one and two of the Pfizer and Moderna vaccines (17-25 days for Pfizer or 24-32 days for Moderna). They must wait another two weeks after receiving both doses until they are fully protected.

According to the CDC, it is healthy for pregnant women including Meghan to have a COVID-19 vaccination if they choose.

How Prince Harry and Meghan Markle got involved?

When Global Citizen CEO Hugh Evans approached the Duke and Duchess of Sussex, they quickly got on board. “We said we need champion of this campaign. Quite frankly they were immediately on the same page. It wasn’t a convincing. It was a conversation,” Evans told Variety at the concert airing on Sunday night at SoFi Stadium in Inglewood, California,  “They were so excited. They said, ‘We believe in the importance of vaccine equity.’ For them, it was an easy decision to do the right thing because they were so passionate already .”

“When I spoke to Megan, she said we really should call on the private sector to rally and for American businesses to step up, so they convened a roundtable and they started getting to work, and they invited the private sector leaders to be part of the effort,” Evans continued. “They’ve approached it with such sincerity and such leadership. I’ve been extremely impressed with their amazing commitment to the cause.”

Harry’s speech

“We are at a defining moment in the global fight against COVID-19,” said the 36-year-old, who was given a standing ovation as he appeared alongside Jennifer Lopez, Foo Fighters and Sean Penn at the “concert to reunite the world”.

The concert, he said, was a tribute to the “frontline heroes” in the audience and across the world.

“You spent the last year battling courageously and selflessly to protect us all,” he said, before referencing the “service” that is so often referenced by the royals.

“You served and sacrificed, put yourselves in harm’s way and with bravery knowing the costs. We owe you an incredible depth of gratitude, thank you.”

As he made his first public appearance since moving to California last year, the Duke of Sussex said the virus “does not respect borders” and that “access to the vaccine cannot be determined by geography.”

“Tonight, we stand in solidarity with the millions of families across India, who are battling a devastating second wave,” he said.

“We’re also coming together because this pandemic cannot end unless we act collectively with an unprecedented commitment to our shared humanity.”

He demanded that the vaccination be provided to “everyone, everywhere,” adding that “we cannot rest or truly recover until there is fair distribution to every corner of the world.”