Complex sentence: In 2003, they were selected by "People Magazine" as three of the "50 Most Beautiful People" and have been featured in "Vogue", "GQ" and in ads for GAP and Anne Klein.
Split into simpler sentences: In 2003, they were selected by "People Magazine" as three of the "50 Most Beautiful People". Other magazines in which the trio has made appearances include "Vogue" and "GQ," and they have been featured in ads for GAP and Anne Klein.