Hair today, tears tomorrow?

Kate Gosselin, 34, marked the new year by trading in her signature spiky bob for long, blonde locks in a process that took 20 hours of work and would normally cost $7,000 (hers was comped).

Just one problem: "She hates it!" a source tells the new issue of Us Weekly.

"She thinks her hair looks over­processed and damaged," adds the insider. "She's afraid people will think she's one of Tiger Woods' bimbos!" (In an online video posted Jan. 10, Gosselin looks in the mirror and says, "Oh, Lord have mercy... it's weird.)

See what Kate looked like in high school

Also not fans? Twins Cara and Mady, 9, who shrieked "Eww!" when they saw their made-over mom.

"They started laughing," says the source. "Kate ended up in her room crying."

Check out what Angelina Jolie -- and other stars -- look like with Kate's spiky 'do

But not all hope is lost. On Jan. 8, Gosselin had a stylist visit her Pennsylvania home to coach her on how to care for her new look.

"Kate has been trying different things, from headbands to ponytails to a Farrah Fawcett–style 'do. She's just not sure what she wants."