Marc Anthony’s new romance could be put under pressure due to his hectic schedule.

The singer stepped out with 21-year-old Chloe Green at Disneyland this week. The pair were seen holding hands and hugging as they spent the day with his twins Max and Emme. Marc’s latest romance has raised eyebrows, but insiders claim he has known the Topshop heiress “for years”.

It is not yet known how serious the relationship is, but sources maintain that it could be tested by Marc’s upcoming work commitments.

“Marc’s headed to Miami to record some music,” a source told New York Post. “Then he’s doing shows in Honduras. If she shows up, that’ll be the real test.”

Chloe’s father is British businessman billionaire Sir Philip Green, who is friends with stars including Kate Moss, Naomi Campbell and Kate Hudson.

At 44, Marc is 23 years older than Chloe and the romance is a departure from his previous relationship with ex-wife Jennifer Lopez and Venezuelan beauty Shannon de Lima.

According to the New York Post, Marc’s ties to the Church of Scientology could be influencing aspiring designer-and-actress Chloe.

Chloe posted a cryptic tweet after arriving in Los Angeles for the launch of a new Topshop store last month.

Quoting a friend, she tweeted, “‘LA thank you . . . I’ve found myself,’ ” followed by “So have I!”

Marc’s representatives have previously denied he is a member of the controversial religion.

Speculation is also rife about whether Chloe will spend her 22nd birthday with her new beau.

The blonde took to her Twitter account to reveal she was looking forward to celebrating her special day on Saturday.

“Birthday countdown begins!!! 2days!! #birthday #fun 2nd March!! ? (sic)” she wrote.