WASILLA, Alaska — David Letterman may have some new material.

Alaska Gov. Sarah Palin pulled a shocker Friday, announcing that she plans to resign her post on July 26.

"We know we can effect positive change outside government at this moment in time on another scale and actually make a difference for our priorities," said Palin during her shocking news conference.

Early speculation is that Palin's decision to step down is centered around her desire to focus on earning the 2012 Republican nomination for president.

HOLLYWOOD, Calif. — Rumer Willis is about to make her mark on a famous zip code.

The 20-year-old daughter of Bruce Willis and Demi Moore is coming to The CW's "90210" as a guest star, according to Access Hollywood.

A CW rep told Access that Willis will star in at least one episode of the breakout series as a lesbian named Gia. She'll join the school's newspaper staff, where she'll work alongside Navid (Michael Steger), Adrianna (Jessica Lowndes) and Silver (Jessica Stroup).

HOLLYWOOD, Calif. — Cobie Smulders is one proud "mother."

The "How I Met Your Mother" star gave birth to a baby girl named Shaelyn Cado on May 16, People magazine confirmed Friday.

She is the first child for Smulders and her fiancé, actor Taran Killam, both 27.

The couple announced the pregnancy last November.

Smulders and Killam, who is just two days older than his girlfriend, became engaged in January.

Movie director Ken Russell is 82. Singer Fontella Bass is 69. Actor Kurtwood Smith is 66. Actor Michael Cole is 64. Country singer Johnny Lee is 63. Writer Dave Barry is 62. Actress Betty Buckley is 62. Talk show host Montel Williams is 53. Country singer Aaron Tippin is 51. Actor Tom Cruise is 47. Actor Thomas Gibson is 47. Actress Hunter Tylo is 47. Actress Yeardley Smith is 45. Actor Grant Rosenmeyer is 18.