She began working towards being a model at the age of 12 and is now preparing to say goodbye to the world famous show.
Alessandra is one of Victoria's Secret's longest-running models, having first appeared in a show in 2005 - when she wore an outfit made entirely out of sweets.
She was elected as the first spokesmodel for VS' PINK line in 2006 and wore the heaviest wings ever made for the show in 2011.
The enormous Angel wings weighed in at 2st 2lb, and Alessandra wore them while pregnant with her second child.
VS models are known for their intense diets, gruelling work-out regimes and endlessly enviable figures - but in 2008 Alessandra walked the runway just THREE MONTHS after giving birth to her first child.
The VS stalwart also opened the show in 2009 and has been chosen to wear the Fantasy Bra twice.
Alessandra wore the Floral Fantasy Bra in 2012 and the Dream Fantasy Bra in 2014, costing around Ł2 million each.
But in November 2017, days before this year's show aired, Alessandra posted an emotional message on Instagram - calling time on her spell on the Victoria's Secret catwalk.