Here's an explanation on her broken foot! (from vogue.com)
'A TIMBERLAKE BREAK
STILLETTOS are out for Erin Wasson; the supermodel has broken her foot filming an ad for Justin Timberlake's fashion line, William Rast.
Her bones have been left weak from years spent in skyscraper heels, PAGESIX.COM reports.
"She continued shooting after the injury and finished the 16-hour day, but she's in a cast for a month and has to postpone all upcoming projects and work," a source confirmed. (May 2 2008, AM) '