The 16-year-old flies out to St Lucia with the other six remaining girls as they find out that the N-Dubz star will be mentoring them this year.
Joined by Ne-Yo, Tulisa watches as Ella performs I Won't Give Up by Jason Mraz as the sunsets.
It seems to us that Tulisa even tries to hide a few tears behind her oversized sun glasses!
Meanwhile, Rylan Clark is seen singing We Found Love for Nicole Scherzinger in Dubai.
The wacky singer from Essex was controversially taking through as part of the final 25 last weekend, and will be battling it out for a spot in the live shows this time around.
Nicole seems to be enjoying Rylan's slowed down performance of the Rhianna track, but will it be enough to convince her to put him through?
Will it be a yes or no for Rylan and Ella? Find out when The X Factor 2012 airs this Saturday and Sunday night on ITV1.
Browse pictures of the X Factor girls at judges' houses below...