"We became friends immediately, as soon as we met," she said.
"On the surface we may seem different but we're not really. Not seriously. In terms of friendship and loyalty, we're very similar."
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The pair didn't get a chance to catch up in Las Vegas as they headlined separate nights.
Swift opened the two-night event on Friday, performing her hit single Shake It Off to a sell-out crowd, before jetting back to Los Angeles.
Lorde arrived the following day, headlining the Saturday night line-up, which also featured Ed Sheeran, Iggy Azalea and One Direction.
The 17-year-old is in the midst of a US tour, before she heads home to play four shows here next month.
Lorde's wild tresses take center stage
She once revealed that her secret to big hair is just not washing it.
Whatever Lorde was doing on Saturday night, it was working, because her immense and curly brunette tresses took on the appearance of a lion's mane as she performed on stage.
The 17-year-old Royals singer was part of the line-up for the iHeartRadio Music Festival in Las Vegas, Nevada.
Her wild curls were seen flapping and flailing around her head as she gave her usual animated performance on the star-studded stage.
It was out and untied and entirely unrestrained.
Lorde was dressed in a chic grunge ensemble; a two-piece pants suit and crop top made up of tailored grey and black patterned fabric.
She wore patent black leather boots and flashed a slice of midriff as she belted out her tunes.
Lorde performs at the iHeartRadio Music Festival. Photo / AP
Her lips were painted with her signature dark lipstick, and she was seen throwing her head back in the same wistful and unique form that her concerts tend to take.
Lorde's fluffy hair has in fact become a part of her image, and is no doubt something that young girls who look up to her try to replicate.
The New Zealand native recently told MTV the secrets behind her birds nest 'do.
"My hair is wild," she confessed. "What you do to maintain it is don't wash it that often; once every two weeks is a good vibe."
She went on to concede that this was not exactly an ideal situation.
"It's disgusting,' Lorde declared. 'It probably smells awful and [is] like really knotty."
Lorde took the stage along with Paramore, Iggy Azalea, One Direction, Weezer, 50 Cent, Ed Sheeran, Eric Church, Calvin Harris and Train on Saturday.
It was the second part of a two-day festival in the hot desert city.
- Herald with Daily Mail
