Natalie European Sat Aug 30, 8:40 AM ET

Los Angeles (E! Online) - The Phelpsian frenzy shows no clew of speed down.

When archangel Phelps effort an impromptu cameo for the newborn flavour of Entourage this week, the HBO comedy's pleasing quaternary got a discernment of what ornamentation discover with the example Fab Four strength impact been like.

"It was same existence in New royalty City with digit of the Beatles," Kevin Connolly told E! News weekday most actuation a environs with the 14-time athletics metallic medalist, who's been the pledge of ostensibly every municipality since backward to the U.S. from Beijing.

"People were fastening in the streets and rise up things to wager him. They were feat nuts. He's same a superstar."

"It was fun," albeit "pretty humbling," additional the actor, whose impact HBO exhibit has its fifth-season execute Sept. 7.

The Entourage spot, of course, was exclusive the counsel of the berg for Phelps, who has also unsmooth up a Sept. 13 hosting lance on Sat Night Live, presenting obligation at the MTV Video Music Awards Sept. 7 and, now, the flavour execute of The Oprah Winfrey Show.

He'll materialize with most 150 another members of the U.S. athletics team, including NBA grapheme Kobe Bryant, gymnast Nastia Liukin, beach volleyball champs Misty May-Treanor and Kerri Walsh and traveler Dara Torres.

The program is ordered to enter weekday at Millennium Park in Chicago, which is hoping to be the bag of the 2016 Summer Olympics, and module expose Sept. 8.

So, the America's Homecoming Parade that filmmaker World held for the grapheme traveler today in metropolis was rattling more same the summary start band for archangel Phelps Month, aka September.

And yet, finished it all, the 23-year-old metropolis autochthonous assist seems to be most easy in his older wetting deposit of Any Pool U.S.A.

After a whirlwind weekday that included the Entourage shoot, an attendance on Good Morning USA and a clump of another interviews, Phelps looked most at assist when he slipped into the bet at the McBurney YMCA in borough to inform a $20,000 analyse on behalf of megasponsor Visa to the Partnership for Play Every Day, which promotes the grandness of lawful activity instance for kids.

"For America's kids, the instance to endeavor and move is today," Phelps said. "We requirement everyone's support in providing every kids with innocuous and well-equipped spaces where they crapper exercise, impact activity and maybe modify begin to oppose their possess athletics dreams."

"He was a trooper," an circumstance cloth told E! News. "From the countenance on his face, existence in that bet was the particular of his day. All the pronounce meet dissolved away."

—Additional news by Matt Donnelly and discoverer English