Stars by the Numbers!

Some may associate 13 with misfortune, but Taylor Swift says the number has

brought her lots of luck. The country superstar, who paints the prime number

on her hand before concerts, told MTV News that she saw her first album go

gold in 13 weeks, has a 13-second introduction to her first No. 1 song; and

even celebrated her 13th birthday on Friday the 13th. Her birthday? Dec. 13!

Lindsay Lohan dubbed her debut leggings line 6126 – and the numerical

name was no coincidence. "I named the collection after Marilyn Monroe’s

birth date [June 1, 1926]," Lohan, who has famously posed like the actress, wrote on her blog. "To me she represents

timeless, confident glam," Lohan continued, "and that is the voice of this

brand."

The Desperate Housewives star tattooed the number 9 (spelled out!) on the back of her neck in honor of husband Tony Parker, who sports that number on his jersey for the San Antonio Spurs.

The hip-hop super couple shares a special bond with the number 4. Not only did they wed on April 4, 2008, they share "4" birth dates (she's Sept. 4; he's Dec.4). The couple met in 2002, which represents "4" in numerology terms, and have commemorated the special bond with matching "IV" tattoos on their ring fingers.

Tattoo aficionado Angelina Jolie covered up the name of ex-husband Billy Bob

Thornton with a sentimental (and numerological) tribute to her children. The

actress actually inked the coordinates for the birthplaces of her children

– Maddox, Pax, Zahara and Shiloh – on her upper arm.