Washington: Demi Lovato gave her hometown fans a sterling performance even after she suffered from an embarrassing wardrobe malfunction.

While performing one on-stage number, the 19 year-old was decked out in a vintage-inspired dress with tiers of ruffles and a plunging neckline when her left nipple popped out of the cleavage-baring ensemble, a magazine reported.

However, just like the rest of her recent hardships, the chart-topping singer moved on and continued with her performance, despite the wardrobe malfunction.

The Texas native wrapped up her 11-city tour, "A Special Night with Demi Lovato," in Chicago, on Saturday.

On Sunday, the 'Skyscraper' star returned to the treatment centre where she had received counselling to deal with personal issues a year ago.

"Wow what an inspiring day. Many tears were shed and many memories were brought back at Timberline Knolls today. Today I went back to the treatment center I went to last year, to speak to the beautiful women fighting their inner demons. Was so honored to be able to share my story and let them know that it gets easier. Life is beautiful. You are worthy of it," she posted in a series of tweets.