Zendaya had a sweet birthday message for BF Tom Holland.

She posted a black-and-white selfie of the two on Instagram.

"Happiest of birthdays to the one who makes me the happiest <3” she wrote.

Many fans showered the post with heart emojis.

It’s unclear just how long the two have actually been dating for.

In July 2017, PEOPLE said that an “insider” told them they were dating.

However, the two took to Twitter to poke fun at the rumors.

In July 2021, they were caught making out in a car in Los Angeles.

In December 2021, Holland admitted to PEOPLE that he wants to “focus on starting a family.”