Elton John‘s swapping out that yellow brick road for another made of 24-karat gold … ’cause a collection he curated for Christie’s sold at auction — and they fetched a bundle.

The legendary singer-songwriter partnered with the popular auction company to sell a ton of iconic items, and Elton made out like a bandit on the auction’s first night — with all 49 lots selling for a total of around $8 million.

Among the items sold … Elton’s silver leather platform boots circa 1971 for $94,500, prescription sunglasses for $22,680 and even his beloved 1990 Bentley Continental which brought home $441,000.

A series of luxury wristwatches sold for prices in the six figures … and Elton even parted with “Flower Thrower Triptych” — a painting by enigmatic artist Banksy — to the tune of just over $1.9 million. The auction house says Elton got the Banksy piece “directly from the artist” … which presumably means EJ has met the elusive man (or woman) himself.

BTW, Wednesday was only the first nightof The Collection of Sir Elton John: Goodbye Peachtree Road sale … more items are set to be sold off in person Thursday and Friday.

Also … deep-pocketed purchasers who’d rather buy from the comfort of their own home will have about a week to pick up more one-of-a-kind collectibles.

These items are taking off like a Rocket Man … so, better take advantage before they’re gone.