Rob Mariano and Amber Mariano

Another reality TV baby is born as former stars of Survivor and Amazing Race Rob and Amber Mariano welcome a daughter.

Rob told People that the baby, born July 4, "tends to be a bit of a night owl like her daddy." Overjoyed with his new arrival, he added, "She is a perfect baby and we could not have asked for anything more. We are over the moon with happiness."

See other celebrity babies born this year

Weighing in at 6 lbs, 11.5 oz, Lucia Rose's middle name is a tribute to Rob's late grandmother who died Fourth of July.

In 2001, Amber was a contestant on the second season of Survivor. Rob competed on the fourth season, Survivor: Marquesas, but it was on the All-Stars season in 2004 that the two formed an alliance that turned into a romance. During the live finale, in which Amber was announced as the winner and Rob the runner-up, the two became engaged. The Survivor sweethearts then went on to compete in the eleventh season of The Amazing Race where they came in eighth place. In 2005, CBS aired a two-hour special detailing their wedding.