• The hills are alive with the sound of Merkel: Angela looks like she's about to burst into song for Obama as world leaders celebrate G7 deal

    By Jack Crone for MailOnline15:02 08 Jun 2015, updated 00:50 09 Jun 2015

    • German chancellor was unusually expressive before today's meeting
    • Was seen laughing with President Obama at picturesque Bavaria setting
    • Today leaders struck deals on new measures to reduce global warming
    • Talks were also dominated by the threat of ISIS and 'Russian aggression'
    • Mr Obama admitted the USA has no 'complete strategy' for helping Iraq regain territory lost to ISIS

    She is renowned for her stern no-nonsense approach to politics - but Angela Merkel looked uncharacteristically chirpy today at she chatted to guests outside the G7 summit in Bavaria.
    The German chancellor seemed to have fellow world leaders in stitches as she welcomed them to the second day of the event at the Elmau castle in Kruen.
    In one photo, Ms Merkel appears ready to burst into song as she gestures enthusiastically to Barack Obama while stood in front of the Bavarian Alps in a scene reminiscent of The Sound Of Music.
    Scroll down for video
    2972294500000578 0 image a 39 1433768607755 - G7  world  leadaers meets at Germany


    We've come this far together! Angela Merke appeared ready to burst into song as she gestured enthusiastically to Barack Obama while stood in front of the Bavarian Alps today2973B6A200000578 3115473 image a 115 1433781758263 - G7  world  leadaers meets at Germany


    The president looked particularly relaxed as he sat back on a bench listening to Ms Merkel while absorbing the spectacular views of the valley.
    She later adopted the same pose - with arms outstretched in theatrical fashion - while talking with UN Secretary-General Ban Ki-moon and other guests of the event.

    And despite their sometimes-rocky relationship, the chancellor even won a laugh from David Cameron as she strolled with him and Canadian Prime Minister Stephen Harper before the hilltop summit.
    Today the Group of Seven (G7) industrial nations focused mainly on the international security threat posed by ISIS, 'Russian aggression' in Ukraine and climate change.
    29722D1100000578 3115473 Best of friends The unusually chirpy chancellor cracks a smile a m 74 1433775051907 - G7  world  leadaers meets at Germany


    Best of friends: The unusually-chirpy chancellor cracks a smile as she poses with Barack Obama297211CF00000578 3115473 image a 95 1433777737678 - G7  world  leadaers meets at Germany


    As thick as thieves: Ms Merkel and President Obama looked jubilant as they shared a joke today in Germany

    G7 leaders and outreach guests pose for 'family photo'

    Speaking on the issue of Russia, Ms Merkel, who was recently voted the world's most powerful woman, said Europe 'could toughen the sanctions if the situation requires us to do so.'