Carmelita Jeter of the United States, Bianca Knight of the United States, Allyson Felix of the United States and Tianna Madison of the United States celebrate after winning gold and setting a new world record of 40.82 afterthe Women's 4 x 100m Relay Final on Day 14 of the London 2012 Olympic Games at Olympic Stadium on August 10, 2012 in London, England. Credit: Clive Brunskill/Getty Images

Team USA's Women's 4x100-Meter victory Friday was doubly sweet. The reason?

Tianna Madison, Allyson Felix, Bianca Knight and Carmelita Jeter didn't just place first -- they shattered the world record previously held by East Germany with their final time of 40.82 seconds.

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Jamaica's Shelly-Ann Fraser-Pryce, Sherone Simpson, Veronica Campbell-Brown and Kerron Stewart took home silver, while the Ukraine's quartet -- Olesya Pvh, Hrystyna Stuy, Mariya Ryemyen and Elyzaveta Bryzgina -- earned the bronze.

Earlier this week, Jeter grabbed silver in the women's 100m race and the bronze in the women's 200m; Felix brought home gold in the 200m race.