PEOPLE: Matthew McConaughey engaged to longtime girlfriend, Camila Alves

Camila Alves and Matthew McConaughey

Matthew McConaughey is engaged to his longtime girlfriend, Camila Alves.

The actor, 42, proposed to the Brazilian model Sunday. He announced the move in a tweet that included a photo of the couple kissing and read, "just asked camila to marry me, merry Christmas."

McConaughey's publicist confirmed the engagement Tuesday. The couple have two children together, son Levi and daughter Vida.

Singer John Legend engaged to model

John Legend will no longer be a bachelor: He's engaged.

The singer's publicist said Tuesday that Legend, 33, proposed to his girlfriend, model Chrissy Teigen, recently in the Maldives. Legend has won nine Grammys. Teigen was named "rookie of the year" in Sports Illustrated's annual swimsuit issue last year.

Van Halen announces 2012 tour on website

Van Halen will tour in 2012.

The rock band has posted a video on its website announcing that the first tickets will go on sale Jan. 10.

The black-and-white video shows guitarist Eddie Van Halen and drummer Alex Van Halen, along with original lead singer David Lee Roth and Eddie's son, Wolfgang, on bass. The ticker at the bottom of the video reads: "Van Halen on Tour 2012. First tickets on sale January 10."

Van Halen, with its flamboyant frontman "Diamond Dave," was one of the most popular rock bands of the 1980s, but Roth left in 1985.

Abstract painter Frankenthaler dies

Helen Frankenthaler, 83, an abstract painter known for her bold, lyrical use of color who led a postwar art movement that would later be termed Color Field painting, died Tuesday at her home in Connecticut, her nephew said.

One of Frankenthaler's most famous works is "Mountains and Sea," a 1952 painting at the National Gallery of Art in Washington, which she created by pouring thinned paint directly onto raw, unprimed canvas laid on the studio floor. Her abstract style helped American art make the transition from Abstract Expressionism to Color Field painting.