They may have been smokin’ hot in their prime, but time hasn’t exactly been on these celebrity’s sides!

From the sexiest big screen sirens and Hollywood hunks to hugest rock stars of the 1980s and 90s, these stars have gone through shocking transformations over the years -- and not for the better. 

RadarOnline.com brought you photos of 10 celebrities who haven’t aged gracefully, and now we are bringing you even more!

There’s no splitting hairs about it, anyone can have a bad hair day -- even stars!

Yes, they may have access to the best hair stylists that money can buy, but that doesn’t mean that Hollywood’s hottest celebs are immune to having a bad hair day. RadarOnline.com has photos of 10 really, really bad celebrity hair days in a special and hilarious photo feature!

PHOTOS: Celebs Having Bad Hair Days

We are used to seeing Kim Kardashian done up to the max, but even the devoted glamazon has stepped out of the house looking less than perfect. With her long hair pulled back into a ponytail, the reality show star was a victim of those pesky fly-aways.

Celebrity Rehab, Celebrity Fit Club, Celebrity Apprentice...and now Celebrity Wife Swap.

Gary Busey seems set on reminding people that he is a celebrity, and after mentoring addicts, losing weight and trying to launch a business, the eternal reality star is swapping wives with controversial pastor, Ted Haggard.

The off-the-wall actor and the scandalized former president of the National Association of Evangelicals - who was ousted after admitting to doing drugs and having a relationship with a male prostitute - are swapping spouses on an upcoming episode of the ABC reality show, Celebrity Wife Swap, reported the Huffington Post.

Jenna Jameson turned heads in a sexy purple bikini Saturday, and got a lift - literally - from boyfriend Tito Ortiz as the two played in a Miami pool.

Continuing their vacation at the Fontainebleau Miami Beach hotel, the couple has gone from the pool to the LIV nightclub and back to the pool.

PHOTOS: Jenna Jameson In Sexy Purple Bikini With Tito Ortiz In Miami

Jenna -- the porn queen turned best-selling author and mainstream actress -- is gearing up to go into production on a horror flick called Veteran's Day, along with Tara Reid and Gary Busey.

PHOTOS: Stars Who've Done Both Porn & Mainstream Movies

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Gary Busey proved he's never too old to party as he rang in his 67th birthday at Blush Boutique Nightclub in Las Vegas, and RadarOnline.com has the photos.

PHOTOS:  Gary Busey Is A Vegas Birthday Boy

The legendary actor tackled his big day with plenty of dancing, cigar smoking and even some lip-locking.

Unfortunately for the wacky Celebrity Apprentice star, it was just a teeth baring fish on the receiving end of his kiss when he was presented with a Piranha 3D themed cake.

It’s been one hell of a week for hell-raising actor Gary Busey.

The Buddy Holly Story star was fired from Celebrity Apprentice Sunday night, but turns out that’s the least of his worries – as his one-year-old son, Luke is currently in a hospital in Los Angeles.

PHOTOS: Cutest Celebrity Kids

Busey’s publicist tells RadarOnline that Luke is being treated at Cedars Sinai Hospital for “childhood illnesses” but that thankfully the little boy should be safely back home by the end of the week.

Finally --  Gary Busey is gone from Celebrity Apprentice.

Donald Trump fired The Buddy Holly Story star on Sunday, after the 66-year-old  whacked-out actor mismanaged his team's weekly project, a live cooking demonstration for Omaha Steaks.

The meaty task pit the men's team, led by Busey, against the women's team, led by Playboy beauty Hope Dworaczyk (who, ironically, doesn't eat red meat!).

Sunday's edition of Celebrity Apprentice was not so sweet for Sugar Ray frontman Mark McGrath, who was fired by Donald Trump after his pirate-themed marketing idea sank like a treasure chest.

The premise of the show was that the men's and women's teams, led by McGrath and LaToya Jackson respectively, were to construct a glass display advertising Australian Gold, a tanning lotion.

While Jackson clashed with team members and seemed to have no concept of budgeting, McGrath was Gung-ho about his idea for a pirate-themed display, and had better relations with his co-workers: except for Gary Busey, that is.