Cheryl took to Twitter to thank fans for their “beautiful birthday wishes” as her son Bear celebrated his first birthday.

She posted: “Thank you so much for all of your beautiful birthday wishes for Bear have told him he has lots.”

One fan replied: “Hope the little boy has a great day and doing good.”

Another said: “Hoping you are all having a wonderful day together. Can’t believe he is already one."

And one added: "Your child’s first birthday is such a monumental moment! Can’t wait to have my own. One day.”

Cheryl thanked fans for their birthday wishes (
Image:
Twitter)

Cheryl’s post comes after Liam Payne shared a rare photo with Bear to mark the big birthday.

The adorable picture shows Bear wrapping his tiny fist around his dad's tattooed hand.

"Can't believe my little man is one today, where does the time go? Happy birthday son you’re my world," wrote Liam alongside the super cute snap he posted to his Instagram page.

He and Cheryl have never shown Bear's face on social media, preferring for him to grow up outside of the public spotlight.

The proud dad was soon inundated with best wishes for Bear from his 15 million strong social media following.

(
Image:
liampayne/Instagram)

Although it's not clear when the photo was taken, there had been reports Liam's hectic schedule would mean he would miss his tot's big day as Cheryl planned a private family party.

Jet-setting dad Liam is expected to fly to Japan for a music festival a day after Bear's birthday and after that will be spending time in the US.

Following weeks of reports their two-year romance was on the brink of collapse, Liam finally admitted there are problems with Cheryl.

Liam finally admitted he and Cheryl did have relationship problems (
Image:
FilmMagic)

"The funniest thing was a week before we were getting married. The next week we’re splitting up," he told the Evening Standard's ES magazine.

"And the thing for me is, I just like to think we’re somewhere in the middle. You know, we have our struggles — like of course I’m not gonna sit here and say that everything’s absolutely fine and dandy, because of course you go through different things, and that’s what a relationship is."

He went on: "But we go through them together as a family and that's the most important thing for me.

"This part of our relationship was never not going to happen, there was always going to be a little bit of tenseness in the way we sort ourselves out, but tell me a relationship in the world that doesn't go through a spot like that?"