Still situated in the UK, Katy Perry was spotted greeting her adoring fans in London, England on Friday night (September 3).
Following another busy day of promotions, the "California Gurls" singer kindly spent time outside the Claridge's Hotel to sign autographs and pose for pictures before continuing along with her nighttime agenda of traveling to Germany.
Having released her new album "Teenage Dream" earlier this week, Katy was able to grab the top spot on the sales chart with 192,000 copies sold while "California Gurls" saw 3.6 million downloads.
Despite the fact that she had the best numbers, industry experts were surprised by the low totals, as one source said, "I'd like to meet one industry executive last week who thought her album would do under 200,000 units, because I don't think that person exists."
The insider adds, "It was a wake-up call for some folks. Some think the sky is falling. Others said, 'Wait a minute, she's a singles artist.' And still others said EMI should have put out the album six weeks ago and it would have sold more."
