page_title: List of Billboard Dance Club Songs number ones of 2015
hierarchical_section_title: List of Billboard Dance Club Songs number ones of 2015
caption_attribution_description: English: Demi Lovato smiling and singing at a concert in Springfield, IL
context_page_description: This is a list of the United States Billboard Dance Club Songs number-one hits of 2015.
context_section_description: This is a list of the United States Billboard Dance Club Songs number-one hits of 2015.
caption: Demi Lovato topped the chart twice in 2015 with
  "Cool for the Summer" and "Confident".
exif: {"Image Make": "Canon", "Image Model": "Canon PowerShot SX100 IS", "Image Orientation": "Horizontal (normal)", "Image XResolution": "180", "Image YResolution": "180", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Microsoft Windows Photo Gallery 6.0.6001.18000", "Image DateTime": "2012:08:15 13:25:17", "Image YCbCrPositioning": "Centered", "Image ExifOffset": "2322", "Image Padding": "[]", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "1/96", "Thumbnail YResolution": "1/96", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "7790", "Thumbnail JPEGInterchangeFormatLength": "1971", "EXIF ExposureTime": "1/60", "EXIF FNumber": "4", "EXIF ISOSpeedRatings": "250", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2012:08:11 10:04:34", "EXIF DateTimeDigitized": "2012:08:11 10:04:34", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "3", "EXIF ShutterSpeedValue": "189/32", "EXIF ApertureValue": "4", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "4", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash fired, auto mode, red-eye reduction mode", "EXIF FocalLength": "126/5", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "1272", "EXIF ExifImageLength": "1619", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "Interoperability RelatedImageWidth": "3264", "Interoperability RelatedImageLength": "2448", "EXIF InteroperabilityOffset": "7584", "EXIF FocalPlaneXResolution": "43520/3", "EXIF FocalPlaneYResolution": "2448000/169", "EXIF FocalPlaneResolutionUnit": "2", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "1", "EXIF SceneCaptureType": "Standard", "EXIF ImageUniqueID": "62CFDD089C3C4B7886844BB20CA15027", "EXIF Padding": "[]", "EXIF OffsetSchema": "4156"}