Matching mullets and cringeworthy outfits: Gogglebox cast ...

They're known for their point-black critique of Australia's biggest TV shows.

And the cast of Gogglebox have turned back the clock by sharing hilarious photos from their younger years.

From Lee and Keith's matching mullets to Grant Jackson's velvet blue penguin suit, fans have been treated to some of the reality stars' terribly great faux pas.

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What a throwback! Gogglebox stars Lee and Keith look unrecognisable with matching mullets in their flashback photos

What a throwback! Gogglebox stars Lee and Keith look unrecognisable with matching mullets in their flashback photos

Worlds apart: Keith's mullet is a far cry from his current look

Worlds apart: Keith's mullet is a far cry from his current look

Sporting much more hair than currently, council worker Keith showed off a mullet and handle-bar moustache as he posed alongside wife Lee on their day.

Another shot showed Lee sporting a luscious mullet herself as she held the couple's baby in her arms.

Meanwhile, two of the Jackson kids, Grant and Stacey, were pictured on their formal night from high school.

Blue jean babies: The Jackson siblings Stacey and Grant wore matching blue outfits on their formal night in high school

Blue jean babies: The Jackson siblings Stacey and Grant wore matching blue outfits on their formal night in high school

Who's that? Tom (R) had long blonde locks in his throwback shot, which was taken during his first date with partner Tom (L)

Who's that? Tom (R) had long blonde locks in his throwback shot, which was taken during his first date with partner Tom (L)

Then and now: Tom has ditched his long tresses and is now sporting glasses

Then and now: Tom has ditched his long tresses and is now sporting glasses

Showing off very thin eyebrows and bouncy curls, Stacey wore a strapless blue

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