Lulu, 75, has found herself on the receiving end of some confused and concerned messages from her Instagram and Facebook followers after her latest update.
The iconic singer, who recently hit headlines when she opened up about her current relationship status, took to social media with a snap alongside a very familiar face.
The Scottish-born performer attended a work event in Oxfordshire where she met two-time Emmy nominee and Golden Globe winner Tom Hiddleston.
The duo were attending The Dragon School where they got to meet aspiring performers and take part in workshops encouraging pupils to pursue the arts.
After the event, Lulu took to her social media channels to post a snap with Hiddleston, writing in the accompanying caption: "A Saturday well spent singing and dancing at The Dragon School with some of the pupils there and meeting the gifted actor @twhiddleston and his sister, Emma."
Both Hiddleston and Lulu were all smiles in the snap as the singer donned a black turtle neck top with a black blazer adorned with fabric cutouts of daisies.
Lulu recently opened up about her love life ahead approaches her 76th birthday
GETTYThe singer also sported a pair of sunglasses for the photo while Loki star Hiddleston opted for an all-navy suit and tie combination.
Shortly after posting the update, several fans rushed to congratulate the singer on the exciting occasion - but others were more concerned with her appearance in the update.
Some fans were so distracted by Lulu's appearance in the update that they even questioned whether or not it was actually the 75-year-old in the photo.
"That’s not Lu Lu!" one Instagram follower remarked. "I think she was saying that she met those 2 people."
"I don’t think that’s Lulu!! You look very different. X," a second echoed before a third similarly said: "That's not lulu."
Meanwhile, a fourth suggested: "I think it’s Emma as mentioned in the caption."
And it wasn't just questions about her identity that baffled fans as others queried why she felt the need to wear sunglasses indoors.
"Why always the dark glasses?" an Instagram user questioned before another concerned fan on Facebook asked: "Why has she got sunglasses on in the house?"
Lulu hasn't responded directly to the worried fans' comments at the time of writing but other fans were quick to jump to her defence and applaud her ageless looks.
"Blimey Lulu, your like Benjamin Button! Your going backwards in age, looking absolutely amazing," one Facebook user said before an Instagram follower praised: "You look great and your happy daisies giving out positive vibes." (sic)
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Lulu has been performing to audiences around the world since the 1960s
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It's not the first time this year fans have been left airing their worries for the singer after she opened up about a health woe she recently endured.
In July while on ITV's Good Morning Britain, Lulu revealed the impact of performing on stage for the best part of six decades has left her with hearing loss.
"If you’re 75 I don’t think your hearing is going to be good as it used to be," she told the presenters.
"But if you’re in the rock 'n' roll business, if you’re a performer, and a lot of them - I'm not gonna mention names - are deaf! They have no hearing at all.
"So I went to Specsavers because they now do hearing aids and hearing protection, and I had my ears tested.
"And yes, moderate hearing loss but you know me, I don’t want to not hear people! I want to hear what they're saying in the next room, I want to hear everything and my music."